What is the population of Knoxville city?

Knoxville city has 3,137 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #422 of 1,462 in Illinois.

What is the median household income in Knoxville city?

Median household income in Knoxville city is $80,385 a year, 2.4% above the national figure of $78,538.

How much does it cost to rent or buy in Knoxville city?

Median gross rent is $675 a month and the median home value is $139,900, so rent absorbs about 10.1% of median household income.

Is Knoxville city affordable compared with the rest of the US?

Homes cost about 1.7× the local median income here versus roughly 3.9× nationally, so Knoxville city is more affordable to buy in than the typical US market, and rent takes 10.1% of median income against the 30% cost-burden line.

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Illinois · Census place 40416

Knoxville, IL population, income and ZIP codes

Quick answer

The population of the city of Knoxville, Illinois (Knoxville, IL — Census place “Knoxville city”) is 3,137 residents, ranking #422 of 1462 places in Illinois. Median household income is $80,385, the median home is worth $139,900 and median gross rent runs $675 a month. Looking for the Knoxville Illinois ZIP code list? 1 ZIP codes serve Knoxville, IL: 61448.

Population: 3,137Knoxville city residents
Median household income: $80,385Past 12 months, inflation adjusted
Median home value: $139,900Owner-occupied units
Median gross rent: $675Rent plus utilities, monthly
Median age: 43.3 yrsAll residents
Homeownership rate: 84.8%Owner-occupied households

Knoxville ZIP codes (Illinois)

Census ZCTAs whose delivery area overlaps Knoxville.

The Knoxville IL ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

61448

What the numbers mean in Knoxville city

Housing cost measured against local earnings.

A household earning the Knoxville city median would spend about 10.1% 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 1.7× the median household income; nationally that ratio sits near 4.5×. Poverty affects 6.6% of residents and 84.8% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Knoxville city, IL in context

How this area compares with national benchmarks.

Knoxville city is a small town in Illinois, with 3,137 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #422 of 1,462 ranked by population — larger than 71% of them. The median age here is 43.3 years against 39.1 nationally, a slightly older profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Knoxville city earn a median of $80,385 a year, 2.4% above the national figure of $78,538 and 8% above 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 6.6% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Knoxville city is valued at $139,900, 53.9% below the national figure and 22% below the $179,100 peer median, while median gross rent runs $675 a month, 52% below the national figure, or roughly $8,100 across a full year. A household on the local median income would put about 10.1% 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 1.7×, 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. 84.8% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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.

More Illinois coverage.

Frequently asked questions

Common questions about this area.

What is the population of Knoxville city?: Knoxville city has 3,137 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #422 of 1,462 in Illinois.
What is the median household income in Knoxville city?: Median household income in Knoxville city is $80,385 a year, 2.4% above the national figure of $78,538.
How much does it cost to rent or buy in Knoxville city?: Median gross rent is $675 a month and the median home value is $139,900, so rent absorbs about 10.1% of median household income.
Is Knoxville city affordable compared with the rest of the US?: Homes cost about 1.7× the local median income here versus roughly 3.9× nationally, so Knoxville city is more affordable to buy in than the typical US market, and rent takes 10.1% of median income against the 30% cost-burden line.
How current is this Knoxville city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.