City · Iowa
Princeton, Iowa
Princeton, city, in Scott County, Iowa. Princeton had 909 residents on July 1, 2025 by the Census Bureau's estimate, down 1.7% since 2020; the 2020 Census counted 923 and the ACS 2020-2024 5-year estimates put it at 794 (±161). GEOID 1964740.
Residents, July 2025 estimate
909
Census Bureau estimate (no margin published)
2020 Census count: 923 · ACS 2020-2024: 794 ±161
Median household income
$87,188
±$20,673 (90% margin)
Iowa: $75,059
Median home value
$266,200
±$19,549 (90% margin)
Iowa: $208,000
Median gross rent
$600
±$409 (90% margin)
Iowa: $972
Where is Princeton and what county is it in?
Princeton is a city in Scott County, Iowa. It covers 3.3 square miles of land, 283 residents per square mile in 2020.
Princeton is in the Davenport-Moline-Rock Island, IA-IL metropolitan statistical area, which takes in 4 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 Princeton, and is it growing?
The Census Bureau estimates that 909 people lived in Princeton on July 1, 2025, down 1.7% since 2020, while Iowa grew 1.5%. The 2020 Census counted 923 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 794 (±161).
| Measure | Princeton | Scott County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 794 ±161 | 174,608 | −308 |
| Households | 343 ±57 | 73,132 | −82 |
| Average household size | 2.31 ±0.28 | 2.34 | no clear change |
| Housing units | 406 ±85 | 78,537 | no clear change |
Princeton's population since 2000
From 946 in 2000 to 909 in 2025: down 3.9%. The 2000, 2010 and 2020 figures are census counts, each for Princeton 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 Princeton?
The median resident of Princeton is 50.0 years old; 17.1% are under 18 and 23.0% are 65 or older. The largest group is non-Hispanic white residents at 94.5%, then non-Hispanic residents of two or more races at 4.4%.
| Measure | Princeton | Scott County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 50.0 ±8.3 | 39.4 | no clear change |
| Under 18 years | 17.1% ±7.5 pts | 23.1% | – |
| 65 years and over | 23.0% ±8.6 pts | 17.5% | – |
| Male | 49.0% ±3.5 pts | 49.4% | – |
| Hispanic or Latino (any race) | 1.1% ±1.2 pts | 7.4% | – |
| White alone, not Hispanic | 94.5% ±3.5 pts | 77.0% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±3.1 pts | 7.1% | – |
| Asian alone, not Hispanic | 0.0% ±3.1 pts | 2.8% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±3.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.1 pts | 0.1% | – |
| Two or more races, not Hispanic | 4.4% ±3.3 pts | 5.1% | – |
| Some other race alone, not Hispanic | 0.0% ±3.1 pts | 0.4% | – |
| Born outside the United States | 0.3% ±0.4 pts | 4.8% | – |
| Speak a language other than English at home (age 5+) | 0.8% ±0.9 pts | 7.0% | – |
| Civilian veterans (age 18+) | 10.9% ±4.2 pts | 7.5% | – |
| With a disability | 10.8% ±4.8 pts | 12.9% | – |
| No health insurance coverage | 2.3% ±1.9 pts | 5.2% | – |
| High school graduate or higher (age 25+) | 95.6% ±3.7 pts | 94.1% | – |
| Bachelor's degree or higher (age 25+) | 22.0% ±5.1 pts | 36.6% | no clear change |
| Graduate or professional degree (age 25+) | 4.1% ±2.4 pts | 14.0% | – |
| Lived in the same house a year earlier | 86.3% ±11.9 pts | 86.5% | – |
| Moved from another state in the past year | 0.0% ±3.1 pts | 3.4% | – |
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 Princeton earn?
Half of Princeton's 343 households earn less than $87,188 a year (±$20,673), against $78,277 in Scott County and $75,059 in Iowa. In 2015-2019 it was $86,320 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.9% of residents live below the poverty line.
| Measure | Princeton | Scott County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $87,188 ±$20,673 | $78,277 | no clear change |
| Mean household income | $105,087 ±$13,191 | $103,843 | – |
| Per capita income | $47,040 ±$5,065 | $43,847 | no clear change |
| People below the poverty line | 3.9% ±2.3 pts | 11.5% | no clear change |
| Children under 18 below the poverty line | 1.5% ±2.6 pts | 13.3% | – |
| Households receiving SNAP | 2.0% ±1.9 pts | 10.3% | – |
| Households with a computer | 89.8% ±4.8 pts | 94.9% | – |
| Households with a broadband subscription | 89.8% ±5.1 pts | 90.5% | – |
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 Princeton?
Owners occupy 84.8% of Princeton's occupied homes and renters 15.2%. The median owner-occupied home is valued at $266,200 by its owner (±$19,549).
| Measure | Princeton | Scott County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $266,200 ±$19,549 | $222,000 | +$44,921 |
| Median gross rent | $600 ±$409 | $1,005 | – |
| Renters paying 35% or more of income on rent | 32.0% ±19.6 pts | 38.5% | – |
| Median monthly owner costs, with a mortgage | $1,808 ±$148 | $1,572 | – |
| Owner-occupied homes | 84.8% ±6.2 pts | 70.0% | no clear change |
| Renter-occupied homes | 15.2% ±6.2 pts | 30.0% | – |
| Housing units | 406 ±85 | 78,537 | no clear change |
| Homeowner vacancy rate | 0.0% ±8.0 pts | 0.8% | – |
| Rental vacancy rate | 0.0% ±35.8 pts | 5.6% | – |
| Single-family detached homes | 76.8% ±11.1 pts | 68.2% | – |
| Mobile homes | 9.4% ±8.6 pts | 2.0% | – |
| Built 2020 or later | 0.0% ±6.0 pts | 1.5% | – |
| Built 2010 to 2019 | 6.9% ±2.9 pts | 8.1% | – |
| Built 1939 or earlier | 26.8% ±9.8 pts | 17.9% | – |
| Households with no vehicle | 2.9% ±2.8 pts | 6.7% | – |
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 many new homes is Princeton building?
Builders took permits for 0 new housing units in Princeton in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 4.2 across Iowa.
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 Princeton work and get to work?
88.2% of Princeton's workers drive alone and 4.8% work from home. The average trip to work takes 26.5 minutes.
| Measure | Princeton | Scott County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 68.3% ±8.0 pts | 65.7% | – |
| Unemployment rate | 3.3% ±4.6 pts | 3.7% | – |
| Drove alone to work | 88.2% ±8.7 pts | 78.5% | – |
| Carpooled | 7.0% ±8.7 pts | 6.9% | – |
| Public transportation | 0.0% ±5.8 pts | 0.5% | – |
| Walked | 0.0% ±5.8 pts | 2.1% | – |
| Worked from home | 4.8% ±3.1 pts | 10.9% | no clear change |
| Mean travel time to work | 26.5 min ±4.5 | 20.3 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 Princeton?
No census tract lies mostly in Princeton; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 101.01Scott County | 3,403 | $91,250 |
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 Princeton) · Census block assignment files
How does Princeton compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Princeton is the 10,695th-most populous of the 19,476 U.S. incorporated places that have one and the 301st-most populous of 939 in Iowa.
Princeton is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 301st | 939 |
Princeton's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Princeton 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 Princeton?
23 of the 57 figures for Princeton 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 Princeton 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 Princeton.