Housing data for Illiopolis Township, IL
Illiopolis Township, IL has an estimated 1,488 residents and 616 homes (US Census Bureau, 2020–2024 American Community Survey).
It is a township in Sangamon County.
14.0% of households rent.
The median gross rent is $825 a month.
Figures last updated on .
- Residents
- 1,488 (±236)
- Housing units
- 616 (±102)
- Households that rent
- 14.0%
- Median gross rent
- $825
- Residents since 2015–2019
- +19.1%
What stands out in Illiopolis Township
Homes in buildings of 5 or more units: 1.0% (±8.5 points) in Illiopolis Township, lower than in Sangamon County (11.6%).
Households without a vehicle: 0.8% (±0.9 points) in Illiopolis Township, lower than in Sangamon County (7.6%).
Households that rent: 14.0% (±5.6 points) in Illiopolis Township, lower than in Sangamon County (28.7%).
Households that moved in since 2020: 10.3% (±4.9 points) in Illiopolis Township, lower than in Sangamon County (23.5%).
- Types of homes in Illiopolis Township
- Commute and cars in Illiopolis Township
- Renters and owners in Illiopolis Township
- How long people stay in Illiopolis Township
Housing in Illiopolis Township at a glance
- Median rent: $825 median gross rent a month (Small sample: wide margin of error)
- Rent by bedrooms: $925 median gross rent, 2 bedrooms (Small sample: wide margin of error)
- Rent burden: 24.2% of renters pay 30% or more of income (Small sample: wide margin of error)
- Renters and owners: 14.0% of households rent
- Income and affordability: $83,000 median household income
- Home values: $138,300 median home value
- Homeowner costs: $1,133 median monthly cost with a mortgage
- Property taxes: $2,259 median real estate taxes a year
- Types of homes: 1.0% of homes are in buildings of 5 or more units
- Bedrooms: 68.7% of homes have 3 or more bedrooms
- Age of homes: 69.2% of homes were built before 1980
- Vacancy rate: 0.0% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 66.7% heat with utility gas
- Commute and cars: 22.2 minutes average trip to work
- Growth: +19.1% residents since 2015–2019
- How long people stay: 10.3% moved in since 2020
- Crowding and facilities: 0.8% of homes have more than 1 person per room (Small sample: wide margin of error)
Illiopolis Township against Sangamon County, its state and the nation
| Illiopolis Township | Sangamon County | Illinois | United States | |
|---|---|---|---|---|
| Residents | 1,488 (±236) | 194,947 (exact) | 12,694,798 (exact) | 334,922,499 |
| Housing units | 616 (±102) | 93,382 (±103) | 5,457,452 (±471) | 143,775,355 |
| Households that rent | 14.0% (±5.6 points) | 28.7% (±1.2 points) | 32.9% (±0.2 points) | 34.8% |
| Median gross rent | $825 (±$363) | $983 (±$18) | $1,274 (±$5) | $1,413 |
| Median household income | $83,000 (±$21,903) | $75,357 (±$1,749) | $83,390 (±$362) | $80,734 |
| Median home value | $138,300 (±$39,443) | $176,300 (±$4,624) | $263,300 (±$797) | $332,700 |
| Median real estate taxes (a year) | $2,259 (±$699) | $3,512 (±$86) | $5,298 (±$22) | $3,119 |
| Built before 1980 | 69.2% (±14.0 points) | 61.8% (±1.9 points) | 63.4% (±0.2 points) | 49.7% |
| Average commute | 22.2 minutes (±2.3) | 19.7 minutes (±0.6) | 27.8 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 82.9% (±8.0 points) | 90.6% (±0.9 points) | 90.8% (±0.1 points) | 91.0% |
| Median age of residents | 42.6 years (±8.6) | 41.0 years (±0.2) | 39.0 years (±0.1) | 38.9 years |
Illiopolis Township covers 34.0 square miles of land, about 44 residents per square mile (Census Bureau Gazetteer).
How Illiopolis Township has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 1,249 (±172) | 1,488 (±236) | +19.1% | Not a measurable change |
| Housing units | 553 (±65) | 616 (±102) | +11.4% | Not a measurable change |
| Median gross rent | $717 (±$259) | $825 (±$363) | +15.1% | No measurable change after inflation |
| Median home value | $94,400 (±$6,168) | $138,300 (±$39,443) | +46.5% | No measurable change after inflation |
| Median household income | $71,429 (±$7,468) | $83,000 (±$21,903) | +16.2% | No measurable change after inflation |
| Median owner cost with a mortgage | $1,092 (±$59) | $1,133 (±$214) | +3.8% | No measurable change after inflation |
| Median real estate taxes | $1,843 (±$300) | $2,259 (±$699) | +22.6% | No measurable change after inflation |
| Households that rent | 18.5% (±6.5 points) | 14.0% (±5.6 points) | −4.5 percentage points | Not a measurable change |
| Rental vacancy rate | 0.0% (±27.7 points) | 0.0% (±34.5 points) | 0.0 percentage points | Not a measurable change |
The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.
Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.
The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.
Crime reported to police in Sangamon County
Illiopolis Township has no police department of its own in the FBI’s figures, so this is the figure for Sangamon County as a whole.
In 2025, the police departments that report for Sangamon County recorded 671 violent and 3,051 property crimes per 100,000 residents.
A county-wide figure describes the whole county, not this place; crime varies from one community to the next.
ZIP codes in Illiopolis Township
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 62539 | 72% | 1,412 | $663 | $123,400 | $82,750 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near Illiopolis Township
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Illiopolis | 1.0 mi | $663 | $100,800 | 19.0% |
| Lanesville Township | 4.1 mi | — | $142,900 | 8.3% |
| Niantic Township | 4.9 mi | $1,066 | $124,500 | 8.9% |
| Niantic | 5.2 mi | $1,066 | $114,800 | 11.4% |
| Lake Fork Township | 6.3 mi | — | $160,200 | 22.9% |
| Mount Auburn | 6.6 mi | $1,175 | $84,800 | 7.8% |
| Mosquito Township | 7.7 mi | — | $251,300 | 7.4% |
| Buffalo | 7.8 mi | $533 | $112,100 | 30.5% |
Places in Illinois most like Illiopolis Township
| Place | Median gross rent | Median home value | Median household income | Households that rent |
|---|---|---|---|---|
| Brimfield Township | $900 | $157,700 | $81,250 | 15.6% |
| Harristown Township | $817 | $127,200 | $76,518 | 11.8% |
| Ashmore Township | $828 | $135,100 | $74,954 | 15.8% |
| Colona Township | $838 | $177,100 | $83,769 | 17.3% |
| Harristown | $825 | $117,700 | $72,426 | 11.1% |
| Bismarck | $856 | $114,500 | $79,583 | 17.9% |
Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Illinois.
HUD Fair Market Rent for Illiopolis Township, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $861 | $977 | $1,237 | $1,631 | $1,728 |
HUD income limits for Illiopolis Township, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $24,150 | $40,250 | $64,350 |
| 2 people | $27,600 | $46,000 | $73,550 |
| 3 people | $31,050 | $51,750 | $82,750 |
| 4 people | $34,450 | $57,450 | $91,900 |
| 5 people | $38,680 | $62,050 | $99,300 |
| 6 people | $44,360 | $66,650 | $106,650 |
| 7 people | $50,040 | $71,250 | $114,000 |
| 8 people | $55,720 | $75,850 | $121,350 |
These are the limits HUD sets for its housing programs in the Springfield, IL MSA, where HUD’s median family income for fiscal year 2026 is $114,900.
A program can use its own limits; tax-credit and local programs often do.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
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Questions about Illiopolis Township
How many renters are there in Illiopolis Township?
Illiopolis Township has an estimated 83 (±34) renting households, 14.0% of its occupied homes (2020–2024 American Community Survey).
What is the median household income in Illiopolis Township?
The median household income in Illiopolis Township is $83,000 (±$21,903) a year (2020–2024 American Community Survey).
What is the average home value in Illiopolis Township, IL?
The Census Bureau publishes the median: $138,300 (±$39,443) for owner-occupied homes in Illiopolis Township (2020–2024 American Community Survey).
What is the average mortgage payment in Illiopolis Township?
The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Illiopolis Township, IL is $1,133 (±$214) a month, including taxes, insurance and utilities.
How much are property taxes in Illiopolis Township?
The median real estate tax paid by homeowners in Illiopolis Township, IL is $2,259 (±$699) a year (2020–2024 American Community Survey).
How many homes are in Illiopolis Township?
Illiopolis Township, IL has an estimated 616 (±102) housing units, occupied and vacant (2020–2024 American Community Survey).
Is Illiopolis Township growing?
In Illiopolis Township, the number of residents went from 1,249 in 2015–2019 to 1,488 in 2020–2024 (+19.1%), not a measurable change.
What ZIP codes are in Illiopolis Township?
The ZIP code that covers Illiopolis Township is 62539.
What is the median rent in ZIP code 62539?
The median gross rent in ZIP Code Tabulation Area 62539 is $663 (±$261) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Illiopolis township, Sangamon County, Illinois
- HUD Fair Market Rents, fiscal year 2027: Springfield, IL MSA
- HUD Income Limits, fiscal year 2026: Springfield, IL MSA
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Illiopolis township, Sangamon County, Illinois (county subdivision:37140, in state:17 county:167).
Each estimate (E or PE) has a margin of error beside it (M or PM).
The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.
Figures last updated on .