What are the main factors that influence a COO Assistant's salary?

The primary factors are: 1) Experience Level, 2) Geographic Location, 3) Education/Skills, 4) Company Size & Industry

What industry pays the highest salary for COO Assistant?

The Financial Services industry offers the highest average compensation for COO Assistant roles, with salaries approximately 30% above the market median.

How does experience change A COO Assistant's salary?

A COO Assistant's salary grows with experience: starting around $68,169 for beginners, reaching about $95,178 at mid-level, and approach $128,995 for experts.

What are the highest paying states for a COO Assistant?

COO Assistant salary varies significantly by state. The top 3 highest paying states for COO Assistant roles are District of Columbia $99,343, California $98,966, Massachusetts $97,647. These tech hubs typically pay 10-15% above the national average.

How much do different types of COO Assistant roles make?

Salaries for COO Assistant level roles vary by specialization: coo construction: $377,785; COO: $265,000; COO Nonprofit: $230,034; Physician Assistant - Clinic: $121,531; Physician Assistant - Cardiology: $121,531.

COO Assistant Salary in Massachusetts

How much does a COO Assistant make in Massachusetts? As of September 01, 2026, the average salary for a COO Assistant in Massachusetts is $97,647 per year, which breaks down to an hourly rate of $47.

However, a COO Assistant's salary can vary significantly. Here's a look at the typical salary range:

Top Earners (90th percentile): $120,290
Majority Range (25th-75th percentile): $87,396 to $109,499
Entry-Level (10th percentile): $78,062

10% $78,062

50% (Median) $97,647

90% $120,290

COO Assistant Salaries by Percentile

	Annual Salary	Monthly Pay	Weekly Pay	Hourly Wage
75th Percentile	$109,499	$9,125	$2,106	$53
Average	$97,647	$8,137	$1,878	$47
25th Percentile	$87,396	$7,283	$1,681	$42

Salary Factors Salary by Experience Related Job Salaries Top Paying Cities Explore Related Jobs

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Check out COO Assistant Job Openings in Massachusetts

Executive Assistant COO and CFO

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Key Factors That Influence COO Assistant Salaries

A COO Assistant's salary isn't a fixed number. It's shaped by several important factors. Below, we'll explore how your years of experience, geographic location and company size can directly affect your earning potential.

How Experience Level Affects COO Assistant Salaries?

Experience is a primary driver of a COO Assistant's salary. As you build your skills and take on more complex tasks, your compensation generally increases. Here's how the average salary grows at different career stages:

Entry-Level (less than 1 year): $68,169
Early Career (1-2 years): $79,097
Mid-Level (2-4 years): $95,178
Senior-Level (5-8 years): $107,566
Expert (over 8 years): $128,995

Job Role	Years of Experience	Average Salary
Executive Assistant I	less than 1 year	$68,169
Executive Assistant II	1-2 years	$79,097
COO Assistant	2-4 years	$95,178
Executive Assistant IV	5-8 years	$107,566
Executive Assistant V	over 8 years	$128,995

How Do COO Assistant Salaries Vary from State to State?

Your salary can change significantly depending on where you work. States with a higher cost of living and strong industrial sectors often pay more to attract COO Assistants. For example, consider the average annual salaries in these key locations:

District of Columbia: $99,343.
California: $98,966.
Massachusetts: $97,647.

District of Columbia $99,343 California $98,966 Massachusetts $97,647 Washington $97,288 New Jersey $97,252 Alaska $97,127 Connecticut $95,888 New York $95,386

Hawaii $93,780 Rhode Island $93,026 Maryland $92,515 Minnesota $91,815 Colorado $91,546 Illinois $91,456 Oregon $91,115 Delaware $90,864

New Hampshire $90,706 Virginia $90,352 Pennsylvania $89,321 Nevada $88,800 North Dakota $88,630 Michigan $88,361 Wisconsin $88,262 Vermont $88,064

Texas $87,517 Maine $87,481 Arizona $87,427 Ohio $87,365 Georgia $86,539 Indiana $86,126 Wyoming $86,046 Utah $85,920

Iowa $85,866 Kansas $85,436 Louisiana $85,310 North Carolina $85,265 Missouri $85,247 Florida $84,897 Montana $84,709 Nebraska $84,529

Kentucky $84,431 South Carolina $84,072 Tennessee $83,847 Idaho $83,758 New Mexico $83,103 Oklahoma $82,959 Alabama $82,430 South Dakota $81,542

Arkansas $81,057 West Virginia $80,797 Mississippi $80,016

Top Paying Cities for COO Assistant

Salaries can also vary between different cities. Major metropolitan areas or cities with a high demand for technicians often offer more competitive pay. Here are a few examples of average annual salaries in different U.S. cities:

Agawam: $92,557
Amherst: $93,234
Barre: $94,165

Agawam, MA $92,557

Amherst, MA $93,234

Barre, MA $94,165

Belchertown, MA $93,146

Blandford, MA $92,972

Bondsville, MA $93,163

Brimfield, MA $93,668

Chester, MA $92,587

Chesterfield, MA $92,598

Chicopee, MA $92,545

Cummington, MA $92,348

Easthampton, MA $92,763

East Longmeadow, MA $92,612

East Otis, MA $92,989

Feeding Hills, MA $92,608

Gilbertville, MA $93,910

Goshen, MA $92,590

Granby, MA $92,789

Granville, MA $93,286

Hadley, MA $92,987

Hampden, MA $92,802

Hardwick, MA $93,962

Hatfield, MA $93,004

Haydenville, MA $92,890

Holyoke, MA $92,630

Huntington, MA $92,713

Leeds, MA $92,773

Leverett, MA $93,350

Ludlow, MA $92,716

Monson, MA $93,168

North Amherst, MA $93,171

Northampton, MA $92,838

Florence, MA $92,781

North Hatfield, MA $92,961

Oakham, MA $94,129

Palmer, MA $93,277

Plainfield, MA $92,318

Russell, MA $92,958

Shutesbury, MA $93,494

Southampton, MA $92,712

South Barre, MA $94,127

South Hadley, MA $92,738

Southwick, MA $92,938

Thorndike, MA $93,157

Three Rivers, MA $93,030

Wales, MA $93,584

Ware, MA $93,592

Warren, MA $93,741

West Chesterfield, MA $92,588

Westfield, MA $92,742

West Hatfield, MA $92,911

West Springfield, MA $92,551

West Warren, MA $93,603

Whately, MA $92,966

Wheelwright, MA $94,067

Wilbraham, MA $92,761

Williamsburg, MA $92,698

Woronoco, MA $92,864

Worthington, MA $92,396

Springfield, MA $92,542

Longmeadow, MA $92,574

Indian Orchard, MA $92,583

Pittsfield, MA $92,048

Adams, MA $91,952

Ashley Falls, MA $93,189

Becket, MA $92,307

Berkshire, MA $92,039

Cheshire, MA $92,011

Dalton, MA $92,048

Glendale, MA $92,079

Great Barrington, MA $92,671

Hinsdale, MA $92,121

Housatonic, MA $92,093

Lanesboro, MA $91,976

Lee, MA $92,144

Lenox, MA $92,030

Lenox Dale, MA $92,044

Middlefield, MA $92,197

Mill River, MA $92,961

Monterey, MA $92,655

North Adams, MA $91,906

North Egremont, MA $92,563

Otis, MA $92,737

Richmond, MA $91,950

Sandisfield, MA $93,213

Savoy, MA $92,120

Sheffield, MA $93,039

South Egremont, MA $92,858

Southfield, MA $93,258

South Lee, MA $92,226

Stockbridge, MA $92,032

Tyringham, MA $92,413

West Stockbridge, MA $91,969

Williamstown, MA $91,624

Windsor, MA $92,105

Greenfield, MA $93,108

Ashfield, MA $92,544

Athol, MA $94,206

Bernardston, MA $93,269

Buckland, MA $92,552

Charlemont, MA $92,365

Colrain, MA $92,933

Conway, MA $92,870

Deerfield, MA $93,084

Drury, MA $92,176

Erving, MA $93,595

Heath, MA $92,478

Lake Pleasant, MA $93,413

Millers Falls, MA $93,496

Monroe Bridge, MA $92,037

Montague, MA $93,373

Gill, MA $93,425

New Salem, MA $93,756

Northfield, MA $93,487

Orange, MA $93,890

Petersham, MA $94,143

Rowe, MA $92,223

Royalston, MA $93,958

Shelburne Falls, MA $92,828

South Deerfield, MA $93,031

Sunderland, MA $93,258

Turners Falls, MA $93,363

Warwick, MA $93,539

Wendell, MA $93,626

Wendell Depot, MA $93,657

Fitchburg, MA $94,849

Ashburnham, MA $94,558

Ashby, MA $94,826

Ayer, MA $95,670

Devens, MA $95,454

Baldwinville, MA $94,291

East Templeton, MA $94,393

Gardner, MA $94,497

Westminster, MA $94,505

Groton, MA $95,745

Harvard, MA $95,565

Hubbardston, MA $94,408

Leominster, MA $94,869

Littleton, MA $95,905

Lunenburg, MA $95,170

Pepperell, MA $95,728

Shirley, MA $95,441

Still River, MA $95,329

Templeton, MA $94,389

Townsend, MA $95,379

West Groton, MA $95,570

West Townsend, MA $95,159

Winchendon, MA $94,224

Winchendon Springs, MA $94,309

Auburn, MA $94,022

North Dartmouth, MA $94,579

South Dartmouth, MA $94,586

North Attleboro, MA $94,113

Plainville, MA $94,762

Attleboro Falls, MA $94,247

North Dighton, MA $94,453

Norton, MA $95,721

Raynham, MA $96,229

Raynham Center, MA $96,132

Rehoboth, MA $93,487

Rochester, MA $94,807

Seekonk, MA $93,058

Swansea, MA $93,660

Berkley, MA $94,902

Taunton, MA $95,467

Westport, MA $94,548

Westport Point, MA $94,538

Berlin, MA $94,696

Cataumet, MA $95,016

Blackstone, MA $94,329

Boylston, MA $94,178

Brookfield, MA $93,979

Charlton, MA $94,096

Charlton City, MA $94,099

Charlton Depot, MA $94,099

Clinton, MA $94,571

East Brookfield, MA $94,056

Douglas, MA $94,218

East Princeton, MA $94,411

Fiskdale, MA $93,939

Grafton, MA $94,130

Holden, MA $94,042

Holland, MA $93,784

Jefferson, MA $94,123

Lancaster, MA $95,020

Leicester, MA $94,030

Linwood, MA $94,368

Manchaug, MA $94,148

Millbury, MA $94,029

Millville, MA $94,265

New Braintree, MA $94,031

Northborough, MA $94,321

Northbridge, MA $94,338

North Brookfield, MA $94,061

North Grafton, MA $94,074

North Oxford, MA $94,066

North Uxbridge, MA $94,284

Oxford, MA $94,113

Princeton, MA $94,399

Rochdale, MA $94,037

Rutland, MA $94,180

Shrewsbury, MA $94,042

Southbridge, MA $94,077

South Grafton, MA $94,188

South Lancaster, MA $94,797

Spencer, MA $94,063

Sterling, MA $94,518

Sturbridge, MA $94,010

Upton, MA $94,451

Uxbridge, MA $94,313

Webster, MA $94,184

Dudley, MA $94,151

Westborough, MA $94,397

West Boylston, MA $94,140

West Brookfield, MA $93,878

West Millbury, MA $94,039

Whitinsville, MA $94,309

Sutton, MA $94,137

Worcester, MA $94,004

East Walpole, MA $96,948

Cherry Valley, MA $94,015

Paxton, MA $94,046

Framingham, MA $96,196

Village Of Nagog Woods, MA $96,039

Boxborough, MA $95,732

Acton, MA $96,036

Ashland, MA $95,611

Bedford, MA $96,433

Hanscom Afb, MA $96,959

Bolton, MA $95,187

Carlisle, MA $96,135

Concord, MA $96,377

Fayville, MA $95,435

Holliston, MA $95,586

Hopedale, MA $94,788

Hopkinton, MA $94,901

Hudson, MA $95,325

Marlborough, MA $95,169

Maynard, MA $96,006

Mendon, MA $94,618

Milford, MA $94,944

Natick, MA $97,377

Sherborn, MA $96,712

Southborough, MA $95,157

Foxboro, MA $96,179

Franklin, MA $95,152

Greenbush, MA $97,105

Green Harbor, MA $96,581

Hingham, MA $97,740

Hull, MA $98,725

Humarock, MA $96,701

Mansfield, MA $96,035

Marshfield, MA $96,632

Marshfield Hills, MA $96,794

Medfield, MA $96,903

Medway, MA $95,569

Millis, MA $96,281

Minot, MA $97,105

Norfolk, MA $96,001

North Marshfield, MA $96,581

North Scituate, MA $97,269

Norwell, MA $97,008

Norwood, MA $97,501

Ocean Bluff, MA $96,581

Scituate, MA $97,199

Sharon, MA $96,693

Sheldonville, MA $95,170

South Walpole, MA $96,342

Stoughton, MA $96,768

Walpole, MA $96,717

Westwood, MA $98,068

Wrentham, MA $95,154

Boston, MA $99,702

Roxbury, MA $99,695

Roxbury Crossing, MA $99,696

Dorchester, MA $99,668

Dorchester Center, MA $99,597

Mattapan, MA $99,535

Charlestown, MA $99,689

Jamaica Plain, MA $99,653

Roslindale, MA $99,516

West Roxbury, MA $99,370

Allston, MA $99,672

Brighton, MA $99,623

Hyde Park, MA $99,215

Readville, MA $99,156

Cambridge, MA $99,635

Somerville, MA $99,682

Malden, MA $99,486

Everett, MA $99,625

Chelsea, MA $99,636

Revere, MA $99,482

Winthrop, MA $99,570

Medford, MA $99,529

West Medford, MA $99,449

Quincy, MA $98,883

Melrose, MA $99,172

Stoneham, MA $98,716

Braintree, MA $97,842

Milton, MA $99,039

Milton Village, MA $99,360

Weymouth, MA $97,707

East Weymouth, MA $97,816

South Weymouth, MA $97,010

North Weymouth, MA $98,660

East Boston, MA $99,701

Brockton, MA $96,723

Avon, MA $96,766

Bridgewater, MA $96,507

Bryantville, MA $96,578

Carver, MA $95,589

Duxbury, MA $96,316

East Bridgewater, MA $96,689

Easton, MA $96,704

Elmwood, MA $96,647

Halifax, MA $96,489

Hanover, MA $96,806

Hanson, MA $96,625

Holbrook, MA $96,809

Middleboro, MA $95,469

Manomet, MA $95,751

Lakeville, MA $95,185

Monponsett, MA $96,522

Abington, MA $96,770

North Carver, MA $95,862

North Easton, MA $96,722

North Pembroke, MA $96,648

Pembroke, MA $96,607

Plymouth, MA $95,624

Kingston, MA $96,231

South Carver, MA $95,463

Plympton, MA $96,192

Randolph, MA $97,159

Rockland, MA $96,814

South Easton, MA $96,649

West Bridgewater, MA $96,717

White Horse Beach, MA $95,806

Whitman, MA $96,735

Lexington, MA $97,937

Brookline, MA $99,652

Brookline Village, MA $99,666

Waltham, MA $98,536

North Waltham, MA $99,085

New Town, MA $99,394

Babson Park, MA $98,511

Newton, MA $99,474

Newton Center, MA $99,407

Newtonville, MA $99,340

Newton Highlands, MA $99,320

Newton Lower Falls, MA $98,871

Newton Upper Falls, MA $99,206

West Newton, MA $99,180

Auburndale, MA $98,985

Chestnut Hill, MA $99,585

Waban, MA $99,139

Watertown, MA $99,558

Arlington, MA $99,312

Arlington Heights, MA $99,263

Belmont, MA $99,379

Waverley, MA $99,470

Wellesley Hills, MA $98,509

Wellesley, MA $98,157

Needham, MA $98,700

Weston, MA $98,107

Needham Heights, MA $99,044

Nonantum, MA $99,394

Buzzards Bay, MA $95,245

Lincoln, MA $97,345

Stow, MA $95,670

Sudbury, MA $96,444

Wayland, MA $97,259

Woodville, MA $94,827

Woburn, MA $97,830

Burlington, MA $96,936

Andover, MA $94,980

Billerica, MA $96,124

Chelmsford, MA $96,188

Dracut, MA $96,021

Dunstable, MA $95,981

Haverhill, MA $94,890

Georgetown, MA $95,044

Groveland, MA $94,951

Lawrence, MA $94,776

Methuen, MA $94,793

North Andover, MA $94,890

Lowell, MA $96,202

Merrimac, MA $94,842

North Billerica, MA $96,163

North Chelmsford, MA $96,176

North Reading, MA $95,831

Nutting Lake, MA $96,169

Pinehurst, MA $96,277

Reading, MA $96,763

Tewksbury, MA $95,835

Tyngsboro, MA $96,075

Wakefield, MA $97,950

West Boxford, MA $95,063

Westford, MA $96,081

Wilmington, MA $95,917

Winchester, MA $98,912

Lynn, MA $98,788

Saugus, MA $98,914

Swampscott, MA $98,311

Nahant, MA $99,082

Amesbury, MA $94,788

Beverly, MA $96,560

Boxford, MA $95,023

Byfield, MA $95,106

Danvers, MA $96,372

Essex, MA $95,818

Gloucester, MA $95,922

Hamilton, MA $96,003

Hathorne, MA $96,049

Chilmark, MA $94,885

East Falmouth, MA $95,061

East Sandwich, MA $95,465

East Wareham, MA $95,224

Edgartown, MA $95,182

Falmouth, MA $94,928

Woods Hole, MA $94,737

Menemsha, MA $94,919

Monument Beach, MA $95,083

Nantucket, MA $95,726

North Falmouth, MA $94,961

Oak Bluffs, MA $95,086

Onset, MA $95,106

Pocasset, MA $95,048

Sagamore, MA $95,381

Sagamore Beach, MA $95,426

Sandwich, MA $95,392

Siasconset, MA $95,627

Silver Beach, MA $94,919

Vineyard Haven, MA $94,992

Wareham, MA $95,027

West Chop, MA $95,019

West Falmouth, MA $94,901

West Tisbury, MA $94,967

West Wareham, MA $94,986

Hyannis, MA $95,796

Barnstable, MA $95,587

Brewster, MA $95,719

Centerville, MA $95,554

Chatham, MA $95,783

Cotuit, MA $95,362

Ipswich, MA $95,476

Cummaquid, MA $95,616

Lynnfield, MA $97,104

Manchester, MA $96,398

Marblehead, MA $97,535

Middleton, MA $95,628

Newburyport, MA $94,919

Newbury, MA $95,092

Salisbury, MA $94,718

Peabody, MA $97,249

Prides Crossing, MA $96,620

Rockport, MA $95,728

Rowley, MA $95,254

Salem, MA $97,217

South Hamilton, MA $95,849

Topsfield, MA $95,542

Wenham, MA $96,086

West Newbury, MA $94,950

Accord, MA $97,074

Bellingham, MA $94,762

Brant Rock, MA $96,386

Canton, MA $97,220

Cohasset, MA $97,722

Dedham, MA $98,879

Dover, MA $97,652

East Mansfield, MA $96,413

Dennis, MA $95,696

Dennis Port, MA $95,884

East Dennis, MA $95,625

Eastham, MA $95,589

East Orleans, MA $95,233

Forestdale, MA $95,265

Harwich, MA $95,800

Harwich Port, MA $95,844

Hyannis Port, MA $95,618

Marstons Mills, MA $95,448

Mashpee, MA $95,238

North Chatham, MA $95,765

North Eastham, MA $95,588

North Truro, MA $95,420

Orleans, MA $95,673

Osterville, MA $95,459

Provincetown, MA $95,567

South Chatham, MA $95,806

South Dennis, MA $95,805

South Harwich, MA $95,819

South Orleans, MA $95,704

South Wellfleet, MA $95,388

South Yarmouth, MA $95,859

Truro, MA $95,348

Wellfleet, MA $95,462

West Barnstable, MA $95,571

West Chatham, MA $95,798

West Dennis, MA $95,822

West Harwich, MA $95,845

West Hyannisport, MA $95,676

West Yarmouth, MA $95,782

Yarmouth Port, MA $95,737

Assonet, MA $94,667

Attleboro, MA $93,823

Chartley, MA $95,808

Cuttyhunk, MA $94,693

Dartmouth, MA $94,581

Dighton, MA $94,143

East Freetown, MA $94,686

East Taunton, MA $95,399

Fairhaven, MA $94,583

Fall River, MA $94,419

Somerset, MA $93,958

Marion, MA $94,789

Mattapoisett, MA $94,631

New Bedford, MA $94,578

Acushnet, MA $94,611

COO Assistant Salary by Industry: Top Paying Sectors

For COO Assistant roles, the industry you choose can affect earning potential by as much as 80% (the gap between the highest and lowest paying industries). Data shows that the Financial Services and Pharmaceuticals sectors offer the strongest compensation, at 30% above the average. In contrast, COO Assistant positions in Telecom or Hospitality & Leisure typically offer lower base pay, as these industries often view COO Assistant as a support function rather than a direct revenue driver.

The top paying industries for a COO Assistant

Industry Sector	Average Annual Salary	Average Hourly Rate	Pay vs.Avg
Financial Services	$126,941	$61.0	30%
Pharmaceuticals	$126,941	$61.0	30%
Biotechnology	$122,059	$59.0	25%
Insurance	$117,176	$56.0	20%
Energy & Utilities	$115,224	$55.0	18%

COO Assistant Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Understanding how a COO Assistant's annual salary breaks down can help with budgeting. Below, you can see the average hourly rate, weekly pay, and monthly pay for this role. Use the buttons to switch between different pay periods.

$87,396

Average $97,647/year

$109,499

$7,283

Average $8,137/month

$9,125

$1,681

Average $1,878/week

$2,106

$42

Average $47/hour

$53

	Annual Salary	Monthly Pay	Weekly Pay	Hourly Wage
75th Percentile	$109,499	$9,125	$2,106	$53
Average	$97,647	$8,137	$1,878	$47
25th Percentile	$87,396	$7,283	$1,681	$42

Find Your Next COO Assistant Job

Ready to take the next step in your career? Browse thousands of current COO Assistant job openings on our job board. Use the search bar below to find your perfect match.

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COO Assistant Salary in Massachusetts

Check out COO Assistant Job Openings in Massachusetts

Key Factors That Influence COO Assistant Salaries

How Experience Level Affects COO Assistant Salaries?

How Do COO Assistant Salaries Vary from State to State?

Top Paying Cities for COO Assistant

COO Assistant Salary by Industry: Top Paying Sectors

The top paying industries for a COO Assistant

COO Assistant Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Find Your Next COO Assistant Job

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Where Does Our Salary Data Come From?

Are you an HR manager or compensation specialist?

COO Assistant Salary in Massachusetts

Check out COO Assistant Job Openings in Massachusetts

Key Factors That Influence COO Assistant Salaries

How Experience Level Affects COO Assistant Salaries?

How Do COO Assistant Salaries Vary from State to State?

Top Paying Cities for COO Assistant

COO Assistant Salary by Industry: Top Paying Sectors

The top paying industries for a COO Assistant

COO Assistant Salary: Hourly Rate, Weekly Pay, and Monthly Pay

Salaries of jobs related to COO Assistant

Find Your Next COO Assistant Job

For Employees

For Employers

Where Does Our Salary Data Come From?

Are you an HR manager or compensation specialist?