Census-designated place · Pennsylvania
King of Prussia, Pennsylvania
King of Prussia, census-designated place, in Montgomery County, Pennsylvania. King of Prussia had 25,857 people in the ACS 2020-2024 5-year estimates (±642). GEOID 4239736.
Residents, 2020-2024
25,857
±642 (90% margin)
2020 Census count: 24,695
Median household income
$117,912
±$7,868 (90% margin)
Pennsylvania: $77,971
Median home value
$436,200
±$14,335 (90% margin)
Pennsylvania: $254,500
Median gross rent
$2,077
±$78 (90% margin)
Pennsylvania: $1,209
Where is King of Prussia and what county is it in?
King of Prussia is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Montgomery County, Pennsylvania. It covers 8.5 square miles of land, 2,907 residents per square mile in 2020.
King of Prussia is in the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metropolitan statistical area, which takes in 11 counties (Census Bureau delineation, July 2023).
King of Prussia lies entirely within Upper Merion Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in King of Prussia, and is it growing?
The 2020-2024 American Community Survey puts King of Prussia's population at 25,857 (±642). The 2020 Census counted 24,695 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; King of Prussia is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | King of Prussia | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 25,857 ±642 | 867,573 | +4,544 |
| Households | 11,745 ±452 | 335,505 | +2,306 |
| Average household size | 2.19 ±0.07 | 2.52 | no clear change |
| Housing units | 12,528 ±443 | 350,351 | +2,206 |
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 King of Prussia?
The median resident of King of Prussia is 36.3 years old; 16.6% are under 18 and 14.5% are 65 or older. The largest group is non-Hispanic white residents at 60.1%, then non-Hispanic Asian residents at 21.9%. 23.0% of residents were born outside the United States.
| Measure | King of Prussia | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 36.3 ±1.7 | 41.2 | no clear change |
| Under 18 years | 16.6% ±1.5 pts | 21.3% | – |
| 65 years and over | 14.5% ±1.8 pts | 18.8% | – |
| Male | 49.3% ±2.0 pts | 49.0% | – |
| Hispanic or Latino (any race) | 5.6% ±1.7 pts | 6.7% | +3.1 pts |
| White alone, not Hispanic | 60.1% ±3.6 pts | 71.5% | no clear change |
| Black or African American alone, not Hispanic | 8.8% ±2.7 pts | 9.2% | no clear change |
| Asian alone, not Hispanic | 21.9% ±2.9 pts | 8.0% | no clear change |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.2% ±0.9 pts | 4.0% | – |
| Some other race alone, not Hispanic | 1.3% ±0.9 pts | 0.6% | – |
| Born outside the United States | 23.0% ±2.6 pts | 11.5% | no clear change |
| Speak a language other than English at home (age 5+) | 26.1% ±2.7 pts | 14.7% | – |
| Civilian veterans (age 18+) | 4.6% ±1.4 pts | 4.7% | – |
| With a disability | 8.8% ±1.3 pts | 10.7% | – |
| No health insurance coverage | 4.2% ±1.4 pts | 3.9% | +1.9 pts |
| High school graduate or higher (age 25+) | 97.8% ±0.7 pts | 95.1% | – |
| Bachelor's degree or higher (age 25+) | 65.7% ±2.8 pts | 53.0% | +5.5 pts |
| Graduate or professional degree (age 25+) | 27.8% ±2.7 pts | 23.5% | – |
| Lived in the same house a year earlier | 83.9% ±2.8 pts | 90.2% | – |
| Moved from another state in the past year | 4.3% ±1.7 pts | 1.7% | – |
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 King of Prussia earn?
Half of King of Prussia's 11,745 households earn less than $117,912 a year (±$7,868), against $113,915 in Montgomery County and $77,971 in Pennsylvania. In 2015-2019 it was $110,930 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.5% of residents live below the poverty line.
| Measure | King of Prussia | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $117,912 ±$7,868 | $113,915 | no clear change |
| Mean household income | $133,211 ±$5,377 | $158,091 | – |
| Per capita income | $61,139 ±$2,801 | $62,159 | no clear change |
| People below the poverty line | 4.5% ±1.1 pts | 6.5% | no clear change |
| Children under 18 below the poverty line | 3.8% ±2.3 pts | 7.8% | – |
| Households receiving SNAP | 2.7% ±1.0 pts | 6.6% | – |
| Households with a computer | 99.0% ±0.6 pts | 96.7% | – |
| Households with a broadband subscription | 95.6% ±1.4 pts | 94.3% | – |
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 King of Prussia?
Owners occupy 46.0% of King of Prussia's occupied homes and renters 54.0%. The median owner-occupied home is valued at $436,200 by its owner (±$14,335). The median renter pays $2,077 a month including utilities, and 31.8% of renters pay 35% or more of their income on rent.
| Measure | King of Prussia | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $436,200 ±$14,335 | $436,700 | +$41,393 |
| Median gross rent | $2,077 ±$78 | $1,683 | +$285 |
| Renters paying 35% or more of income on rent | 31.8% ±5.0 pts | 40.3% | no clear change |
| Median monthly owner costs, with a mortgage | $2,323 ±$98 | $2,441 | – |
| Owner-occupied homes | 46.0% ±2.6 pts | 71.4% | −10.5 pts |
| Renter-occupied homes | 54.0% ±2.6 pts | 28.6% | – |
| Housing units | 12,528 ±443 | 350,351 | +2,206 |
| Homeowner vacancy rate | 0.0% ±0.6 pts | 0.8% | – |
| Rental vacancy rate | 7.4% ±2.9 pts | 5.5% | – |
| Single-family detached homes | 32.9% ±2.3 pts | 53.0% | – |
| Mobile homes | 0.7% ±0.8 pts | 0.8% | – |
| Built 2020 or later | 3.3% ±1.4 pts | 1.5% | – |
| Built 2010 to 2019 | 20.4% ±2.1 pts | 6.6% | – |
| Built 1939 or earlier | 2.9% ±1.5 pts | 16.0% | – |
| Households with no vehicle | 7.2% ±2.3 pts | 5.7% | – |
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 do people in King of Prussia work and get to work?
62.2% of King of Prussia's workers drive alone and 29.8% work from home. The average trip to work takes 24.3 minutes. The unemployment rate in 2020-2024 averaged 4.7%.
| Measure | King of Prussia | Montgomery County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 75.2% ±2.3 pts | 67.8% | – |
| Unemployment rate | 4.7% ±2.5 pts | 4.5% | no clear change |
| Drove alone to work | 62.2% ±4.0 pts | 64.4% | – |
| Carpooled | 4.6% ±1.3 pts | 6.2% | – |
| Public transportation | 1.5% ±0.6 pts | 2.9% | – |
| Walked | 1.4% ±0.8 pts | 2.0% | – |
| Worked from home | 29.8% ±3.8 pts | 23.3% | +24.7 pts |
| Mean travel time to work | 24.3 min ±1.5 | 27.8 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 King of Prussia?
8 census tracts lie mostly in King of Prussia, and 2 more reach into it (2020 census blocks). Their median household incomes run from $78,948 (Tract 2059.05) to $148,553 (Tract 2058.09).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 2058.08Montgomery County | 5,645 | $137,500 |
| Tract 2058.10Montgomery County | 4,247 | $111,230 |
| Tract 2058.05Montgomery County | 3,653 | $140,919 |
| Tract 2059.05Montgomery County | 3,616 | $78,948 |
| Tract 2058.11Montgomery County | 3,180 | $107,083 |
| Tract 2058.07Montgomery County | 2,347 | $107,419 |
| Tract 2058.09Montgomery County | 2,686 | $148,553 |
| Tract 2058.06Montgomery County | 2,278 | $118,958 |
| Tract 2059.06Montgomery County | 2,248 | $106,250 |
| Tract 9803Montgomery County | 0 | not published |
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 King of Prussia) · Census block assignment files
How does King of Prussia compare with other places in Pennsylvania?
King of Prussia ranks 237th of 2,136 places in Pennsylvania with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 70th | 2,159 |
| Residents per square mile | 420th | 2,159 |
| Median household income | 237th | 2,136 |
| Per capita income | 180th | 2,157 |
| Median home value | 171st | 2,146 |
| Median gross rent | 78th | 1,963 |
| Poverty rate | 1,403rd | 1,606 |
| Bachelor's degree or higher | 94th | 2,129 |
| Median age | 1,915th | 2,157 |
| Owner-occupied share | 2,064th | 2,149 |
| Work from home | 72nd | 1,710 |
| Travel time to work | 1,323rd | 2,156 |
King of Prussia's figures with every place in Pennsylvania (CSV)
Every place in Pennsylvania, sortable · Compare King of Prussia 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 King of Prussia?
5 of the 57 figures for King of Prussia 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 King of Prussia 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' school search.