This is less than a one percent rise in Washington County’s population, from 209,157 in 2020 to 209,470 in 2021.
Washington County had the 18th largest population in Pennsylvania in 2021.
The US Census Bureau found more than 73 percent of counties in the US saw a natural decrease in population in 2021. This is up from a 55.5 percent increase in 2020.
The Midwest suffered the most sustained population decreases, with many counties along the US East Coast and through the Rocky Mountains seeing increases.
The US population continues to grow, though at a slower rate than before.
Pennsylvania Counties By Population Change from 2020 to 2021
| County | 2020 Estimated Population | 2021 Estimated Population | % Change in Population From Year to Year |
|---|---|---|---|
| Pike County | 58,591 | 59,952 | 2.3% |
| Forest County | 6,952 | 7,032 | 1.2% |
| Cumberland County | 259,996 | 262,919 | 1.1% |
| Carbon County | 64,751 | 65,412 | 1% |
| Chester County | 534,645 | 538,649 | 0.7% |
| Wayne County | 51,101 | 51,431 | 0.6% |
| Monroe County | 168,248 | 169,273 | 0.6% |
| Sullivan County | 5,838 | 5,868 | 0.5% |
| York County | 456,389 | 458,696 | 0.5% |
| Montgomery County | 856,947 | 860,578 | 0.4% |
| Perry County | 45,821 | 45,986 | 0.4% |
| Schuylkill County | 142,777 | 143,264 | 0.3% |
| Adams County | 103,795 | 104,127 | 0.3% |
| Columbia County | 64,667 | 64,872 | 0.3% |
| Clinton County | 37,350 | 37,465 | 0.3% |
| Luzerne County | 325,057 | 326,053 | 0.3% |
| Dauphin County | 286,544 | 287,400 | 0.3% |
| Lehigh County | 374,504 | 375,539 | 0.3% |
| Franklin County | 155,874 | 156,289 | 0.3% |
| Northampton County | 312,855 | 313,628 | 0.2% |
| Butler County | 193,851 | 194,273 | 0.2% |
| Lancaster County | 552,597 | 553,652 | 0.2% |
| Lebanon County | 143,242 | 143,493 | 0.2% |
| Berks County | 428,694 | 429,342 | 0.2% |
| Washington County | 209,157 | 209,470 | 0.1% |
| Mifflin County | 46,073 | 46,136 | 0.1% |
| Wyoming County | 26,001 | 26,034 | 0.1% |
| Susquehanna County | 38,354 | 38,389 | 0.1% |
| Lackawanna County | 215,516 | 215,663 | 0.1% |
| Bradford County | 59,858 | 59,892 | 0.1% |
| Bucks County | 646,008 | 646,098 | 0% |
| Clarion County | 37,178 | 37,156 | -0.1% |
| Tioga County | 40,969 | 40,929 | -0.1% |
| Bedford County | 47,523 | 47,461 | -0.1% |
| Union County | 42,625 | 42,568 | -0.1% |
| Montour County | 18,115 | 18,087 | -0.2% |
| Fulton County | 14,549 | 14,523 | -0.2% |
| Northumberland County | 91,471 | 91,266 | -0.2% |
| Snyder County | 39,717 | 39,621 | -0.2% |
| Centre County | 157,929 | 157,527 | -0.3% |
| Westmoreland County | 353,998 | 353,057 | -0.3% |
| Indiana County | 83,116 | 82,886 | -0.3% |
| Huntingdon County | 44,030 | 43,889 | -0.3% |
| Mercer County | 110,333 | 109,972 | -0.3% |
| Lycoming County | 113,980 | 113,605 | -0.3% |
| Clearfield County | 80,394 | 80,082 | -0.4% |
| Somerset County | 73,917 | 73,627 | -0.4% |
| Lawrence County | 85,865 | 85,497 | -0.4% |
| Delaware County | 576,388 | 573,849 | -0.4% |
| Crawford County | 83,723 | 83,351 | -0.4% |
| Elk County | 30,927 | 30,783 | -0.5% |
| Erie County | 270,427 | 269,011 | -0.5% |
| Armstrong County | 65,445 | 65,093 | -0.5% |
| Potter County | 16,356 | 16,259 | -0.6% |
| Cambria County | 132,957 | 132,167 | -0.6% |
| Blair County | 122,518 | 121,767 | -0.6% |
| Juniata County | 23,451 | 23,297 | -0.7% |
| Beaver County | 167,732 | 166,624 | -0.7% |
| Venango County | 50,275 | 49,938 | -0.7% |
| Jefferson County | 44,431 | 44,114 | -0.7% |
| Allegheny County | 1,248,717 | 1,238,090 | -0.9% |
| Warren County | 38,480 | 38,134 | -0.9% |
| McKean County | 40,306 | 39,941 | -0.9% |
| Fayette County | 128,393 | 126,931 | -1.1% |
| Greene County | 35,813 | 35,369 | -1.2% |
| Cameron County | 4,519 | 4,459 | -1.3% |
| Philadelphia County | 1,601,005 | 1,576,251 | -1.5% |
ORGANIZATIONS IN THIS STORY
Amwell• Westland• Wolfdale• Borough of Donora• Fredericktown• Thompsonville• East Finley Township• Borough of Canonsburg• Borough of Marianna• Bulger• Borough of Ellsworth• Hendersonville• Borough of West Middletown• Cross Creek• Millsboro• West Pike Run Township• Langeloth• Borough of Stockdale• Baidland• Joffre• Cross Creek Township• Chartiers Township• Borough of Beallsville• Borough of East Washington• Borough of Long Branch• Borough of Deemston• Nottingham Township• Southview• East Bethlehem Township• Borough of Dunlevy• South Strabane Township• Van Voorhis• Wickerham Manor-Fisher• McGovern• Borough of Roscoe• Borough of California• West Alexander• Muse• Borough of Twilight• Gastonville• Wylandville• Borough of Burgettstown• Borough of Speers• Taylorstown• Borough of Houston• Cecil-Bishop• Elrama• Borough of North Charleroi• Borough of Green Hills• McMurray• North Bethlehem• Borough of Bentleyville• Meadowlands• Atlasburg• Peters Township• Avella• Borough Of New Eagle• Slovan• Borough Of Elco• Borough Of Claysville• Borough Of Coal Center• Borough Of Finleyville• West Bethlehem• Eighty Four• Borough Of Cokeburg• Paris• North Strabane Township• City Of Monongahela• Borough Of Charleroi• Borough Of West Brownsville
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