
Illinois · Census place 61899
Princeton, IL population, income and ZIP codes
Quick answer
The population of the city of Princeton, Illinois (Princeton, IL — Census place “Princeton city”) is 7,829 residents, ranking #271 of 1462 places in Illinois. Median household income is $57,682, the median home is worth $131,300 and median gross rent runs $739 a month. Looking for the Princeton Illinois ZIP code list? 1 ZIP codes serve Princeton, IL: 61356.
- Population
- 7,829Princeton city residents
- Median household income
- $57,682Past 12 months, inflation adjusted
- Median home value
- $131,300Owner-occupied units
- Median gross rent
- $739Rent plus utilities, monthly
- Median age
- 45.4 yrsAll residents
- Homeownership rate
- 71.4%Owner-occupied households
Princeton ZIP codes (Illinois)
Census ZCTAs whose delivery area overlaps Princeton.
The Princeton IL ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Princeton city
Housing cost measured against local earnings.
A household earning the Princeton city median would spend about 15.4% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 2.3× the median household income; nationally that ratio sits near 4.5×. Poverty affects 15.8% of residents and 71.4% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Princeton city, IL in context
How this area compares with national benchmarks.
Princeton city is a mid-size town in Illinois, with 7,829 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #271 of 1,462 ranked by population — larger than 81% of them. The median age here is 45.4 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Princeton city earn a median of $57,682 a year, 26.6% below the national figure of $78,538 and 22% below the $74,244 median for the 698 Illinois cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 15.8% of residents here, above the 12.4% national rate.
The typical owner-occupied home in Princeton city is valued at $131,300, 56.7% below the national figure and 27% below the $179,100 peer median, while median gross rent runs $739 a month, 47.4% below the national figure, or roughly $8,868 across a full year. A household on the local median income would put about 15.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.3×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 71.4% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Compare with nearby places
Places of similar size in Illinois.
- Park City city 7,631
- Round Lake Park village 7,833
- Inverness village 7,541
- West Dundee village 7,867
- North Riverside village 7,495
- Broadview village 7,898
- Jerseyville city 7,432
- South Beloit city 7,930
Keep going
More Illinois coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Princeton city?
- Princeton city has 7,829 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #271 of 1,462 in Illinois.
- What is the median household income in Princeton city?
- Median household income in Princeton city is $57,682 a year, 26.6% below the national figure of $78,538.
- How much does it cost to rent or buy in Princeton city?
- Median gross rent is $739 a month and the median home value is $131,300, so rent absorbs about 15.4% of median household income.
- Is Princeton city affordable compared with the rest of the US?
- Homes cost about 2.3× the local median income here versus roughly 3.9× nationally, so Princeton city is more affordable to buy in than the typical US market, and rent takes 15.4% of median income against the 30% cost-burden line.
- How current is this Princeton city data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.