City · Washington
Prosser, Washington
Prosser, city, in Benton County, Washington. Prosser had 6,654 residents on July 1, 2025 by the Census Bureau's estimate, up 8.5% since 2020; the 2020 Census counted 6,062 and the ACS 2020-2024 5-year estimates put it at 6,305 (±20). GEOID 5356450.
Residents, July 2025 estimate
6,654
Census Bureau estimate (no margin published)
2020 Census count: 6,062 · ACS 2020-2024: 6,305 ±20
Median household income
$76,985
±$15,431 (90% margin)
Washington: $98,141
Median home value
$314,000
±$24,196 (90% margin)
Washington: $564,600
Median gross rent
$944
±$98 (90% margin)
Washington: $1,760
Where is Prosser and what county is it in?
Prosser is a city in Benton County, Washington. It covers 5.2 square miles of land, 1,173 residents per square mile in 2020.
Prosser is in the Kennewick-Richland, WA metropolitan statistical area, which takes in 2 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Prosser, and is it growing?
The Census Bureau estimates that 6,654 people lived in Prosser on July 1, 2025, up 8.5% since 2020, faster than Washington (+3.8%). The 2020 Census counted 6,062 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 6,305 (±20).
| Measure | Prosser | Benton County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 6,305 ±20 | 212,905 | +103 |
| Households | 2,233 ±182 | 78,046 | no clear change |
| Average household size | 2.82 ±0.23 | 2.70 | +0.37 |
| Housing units | 2,437 ±203 | 83,101 | no clear change |
Prosser's population since 2000
From 4,838 in 2000 to 6,654 in 2025: up 37.5%. The 2000, 2010 and 2020 figures are census counts, each for Prosser as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Prosser?
The median resident of Prosser is 33.1 years old; 28.5% are under 18 and 14.8% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 53.1%, then non-Hispanic white residents at 45.0%. 11.5% of residents were born outside the United States.
| Measure | Prosser | Benton County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 33.1 ±1.5 | 36.3 | no clear change |
| Under 18 years | 28.5% ±3.8 pts | 26.1% | – |
| 65 years and over | 14.8% ±3.2 pts | 15.9% | – |
| Male | 46.1% ±4.2 pts | 50.4% | – |
| Hispanic or Latino (any race) | 53.1% ±10.1 pts | 25.6% | no clear change |
| White alone, not Hispanic | 45.0% ±9.9 pts | 64.6% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±0.6 pts | 1.6% | – |
| Asian alone, not Hispanic | 0.7% ±0.8 pts | 3.0% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.6 pts | 0.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.2% | – |
| Two or more races, not Hispanic | 0.8% ±0.7 pts | 3.9% | – |
| Some other race alone, not Hispanic | 0.4% ±0.7 pts | 0.6% | – |
| Born outside the United States | 11.5% ±4.1 pts | 11.4% | no clear change |
| Speak a language other than English at home (age 5+) | 42.3% ±10.5 pts | 21.6% | – |
| Civilian veterans (age 18+) | 5.3% ±1.8 pts | 7.5% | – |
| With a disability | 14.5% ±3.9 pts | 15.1% | – |
| No health insurance coverage | 10.3% ±4.8 pts | 7.9% | no clear change |
| High school graduate or higher (age 25+) | 81.9% ±6.3 pts | 89.4% | – |
| Bachelor's degree or higher (age 25+) | 23.3% ±5.7 pts | 33.2% | no clear change |
| Graduate or professional degree (age 25+) | 10.3% ±3.7 pts | 12.9% | – |
| Lived in the same house a year earlier | 91.6% ±3.9 pts | 88.2% | – |
| Moved from another state in the past year | 2.2% ±1.8 pts | 2.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Prosser earn?
Half of Prosser's 2,233 households earn less than $76,985 a year (±$15,431), against $89,874 in Benton County and $98,141 in Washington. In 2015-2019 it was $61,737 in 2024 dollars; the margins of error cannot tell the two periods apart. 16.8% of residents live below the poverty line.
| Measure | Prosser | Benton County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $76,985 ±$15,431 | $89,874 | no clear change |
| Mean household income | $84,894 ±$9,299 | $113,863 | – |
| Per capita income | $30,344 ±$3,101 | $42,435 | no clear change |
| People below the poverty line | 16.8% ±6.2 pts | 11.0% | no clear change |
| Children under 18 below the poverty line | 22.8% ±12.6 pts | 13.5% | – |
| Households receiving SNAP | 20.2% ±7.5 pts | 14.8% | – |
| Households with a computer | 92.9% ±5.0 pts | 96.1% | – |
| Households with a broadband subscription | 90.1% ±5.2 pts | 92.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Prosser?
Owners occupy 54.4% of Prosser's occupied homes and renters 45.6%. The median owner-occupied home is valued at $314,000 by its owner (±$24,196). The median renter pays $944 a month including utilities, and 38.6% of renters pay 35% or more of their income on rent.
| Measure | Prosser | Benton County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $314,000 ±$24,196 | $407,800 | +$88,906 |
| Median gross rent | $944 ±$98 | $1,306 | no clear change |
| Renters paying 35% or more of income on rent | 38.6% ±15.5 pts | 39.0% | no clear change |
| Median monthly owner costs, with a mortgage | $1,604 ±$170 | $1,993 | – |
| Owner-occupied homes | 54.4% ±7.2 pts | 67.6% | no clear change |
| Renter-occupied homes | 45.6% ±7.2 pts | 32.4% | – |
| Housing units | 2,437 ±203 | 83,101 | no clear change |
| Homeowner vacancy rate | 2.4% ±3.4 pts | 0.7% | – |
| Rental vacancy rate | 9.5% ±7.5 pts | 5.0% | – |
| Single-family detached homes | 59.7% ±7.2 pts | 63.0% | – |
| Mobile homes | 7.3% ±3.6 pts | 8.5% | – |
| Built 2020 or later | 0.0% ±1.6 pts | 3.0% | – |
| Built 2010 to 2019 | 10.4% ±4.7 pts | 14.9% | – |
| Built 1939 or earlier | 12.1% ±5.6 pts | 2.5% | – |
| Households with no vehicle | 7.0% ±4.6 pts | 5.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Prosser building?
Builders took permits for 50 new housing units in Prosser in 2025 (50 in single-family houses; the permit office reported 9 of 12 months), 7.5 per 1,000 residents against 4.4 across Washington.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Prosser work and get to work?
64.6% of Prosser's workers drive alone and 8.9% work from home. The average trip to work takes 20.6 minutes.
| Measure | Prosser | Benton County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 65.0% ±4.9 pts | 61.6% | – |
| Unemployment rate | 8.0% ±6.1 pts | 5.3% | – |
| Drove alone to work | 64.6% ±9.7 pts | 73.5% | – |
| Carpooled | 22.0% ±9.5 pts | 10.5% | – |
| Public transportation | 0.0% ±1.4 pts | 1.1% | – |
| Walked | 1.8% ±2.9 pts | 0.9% | – |
| Worked from home | 8.9% ±5.5 pts | 12.9% | – |
| Mean travel time to work | 20.6 min ±3.2 | 22.2 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Prosser?
2 census tracts lie mostly in Prosser, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $68,555 (Tract 117.01) to $87,704 (Tract 117.02).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 117.02Benton County | 5,078 | $87,704 |
| Tract 117.01Benton County | 2,997 | $68,555 |
| Tract 118.01Benton County | 3,881 | $72,375 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Prosser) · Census block assignment files
How does Prosser compare with other places in Washington?
By the Census Bureau's July 2025 estimates, Prosser is the 4,181st-most populous of the 19,476 U.S. incorporated places that have one and the 113th-most populous of 281 in Washington.
Prosser ranks 278th of 387 places in Washington with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 113th | 281 |
| Growth 2020-2025 (PEP) | 45th | 203 |
| Residents per square mile | 230th | 394 |
| Median household income | 278th | 387 |
| Per capita income | 346th | 393 |
| Median home value | 333rd | 384 |
| Median gross rent | 325th | 351 |
| Poverty rate | 43rd | 281 |
| Bachelor's degree or higher | 267th | 382 |
| Median age | 349th | 394 |
| Owner-occupied share | 346th | 388 |
| Work from home | 263rd | 307 |
| Travel time to work | 318th | 394 |
Prosser's figures with every place in Washington (CSV)
Every place in Washington, sortable · Compare Prosser with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Prosser?
13 of the 57 figures for Prosser on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Prosser are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Prosser.