Housing data for Island Grove Township, IL
Island Grove Township, IL has an estimated 467 residents and 241 homes (US Census Bureau, 2020–2024 American Community Survey).
It is a township in Sangamon County.
9.1% of households rent.
Figures last updated on .
- Residents
- 467 (±146)
- Housing units
- 241 (±60)
- Households that rent
- 9.1%
- Residents since 2015–2019
- −18.6%
What stands out in Island Grove Township
Households that rent: 9.1% (±11.9 points) in Island Grove Township, lower than in Sangamon County (28.7%).
Median home value: $274,200 (±$61,146) in Island Grove Township, higher than in Sangamon County ($176,300).
Households without a vehicle: 0.9% (±1.4 points) in Island Grove Township, lower than in Sangamon County (7.6%).
Homes built before 1980: 40.2% (±19.8 points) in Island Grove Township, lower than in Sangamon County (61.8%).
- Home values in Island Grove Township
- Commute and cars in Island Grove Township
- Age of homes in Island Grove Township
Housing in Island Grove Township at a glance
- Rent burden: 90.5% of renters pay 30% or more of income (Small sample: wide margin of error)
- Renters and owners: 9.1% of households rent (Small sample: wide margin of error)
- Income and affordability: $95,208 median household income
- Home values: $274,200 median home value
- Homeowner costs: $1,683 median monthly cost with a mortgage
- Property taxes: $3,945 median real estate taxes a year
- Types of homes: 7.9% of homes are in buildings of 5 or more units
- Bedrooms: 73.1% of homes have 3 or more bedrooms (Small sample: wide margin of error)
- Age of homes: 40.2% of homes were built before 1980
- Vacancy rate: 0.0% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 35.5% heat with electricity
- Commute and cars: 23.8 minutes average trip to work
- Growth: −18.6% residents since 2015–2019 (Small sample: wide margin of error)
- How long people stay: 19.1% moved in since 2020 (Small sample: wide margin of error)
- Crowding and facilities: 0.0% of homes have more than 1 person per room (Small sample: wide margin of error)
Island Grove Township against Sangamon County, its state and the nation
| Island Grove Township | Sangamon County | Illinois | United States | |
|---|---|---|---|---|
| Residents | 467 (±146) | 194,947 (exact) | 12,694,798 (exact) | 334,922,499 |
| Housing units | 241 (±60) | 93,382 (±103) | 5,457,452 (±471) | 143,775,355 |
| Households that rent | 9.1% (±11.9 points) | 28.7% (±1.2 points) | 32.9% (±0.2 points) | 34.8% |
| Median gross rent | — | $983 (±$18) | $1,274 (±$5) | $1,413 |
| Median household income | $95,208 (±$22,483) | $75,357 (±$1,749) | $83,390 (±$362) | $80,734 |
| Median home value | $274,200 (±$61,146) | $176,300 (±$4,624) | $263,300 (±$797) | $332,700 |
| Median real estate taxes (a year) | $3,945 (±$569) | $3,512 (±$86) | $5,298 (±$22) | $3,119 |
| Built before 1980 | 40.2% (±19.8 points) | 61.8% (±1.9 points) | 63.4% (±0.2 points) | 49.7% |
| Average commute | 23.8 minutes (±3.2) | 19.7 minutes (±0.6) | 27.8 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 73.2% (±13.7 points) | 90.6% (±0.9 points) | 90.8% (±0.1 points) | 91.0% |
| Median age of residents | 59.3 years (±12.1) | 41.0 years (±0.2) | 39.0 years (±0.1) | 38.9 years |
Island Grove Township covers 28.1 square miles of land, about 17 residents per square mile (Census Bureau Gazetteer).
How Island Grove Township has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 574 (±165) | 467 (±146) | −18.6% | Not a measurable change |
| Housing units | 250 (±78) | 241 (±60) | −3.6% | Not a measurable change |
| Median home value | $116,500 (±$19,514) | $274,200 (±$61,146) | +135.4% | Up after inflation |
| Median household income | $79,018 (±$23,907) | $95,208 (±$22,483) | +20.5% | No measurable change after inflation |
| Median owner cost with a mortgage | $1,063 (±$1,009) | $1,683 (±$763) | +58.3% | No measurable change after inflation |
| Median real estate taxes | $2,546 (±$370) | $3,945 (±$569) | +54.9% | Up after inflation |
| Households that rent | 26.1% (±13.0 points) | 9.1% (±11.9 points) | −17.0 percentage points | Not a measurable change |
| Rental vacancy rate | 0.0% (±38.8 points) | 0.0% (±69.5 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
Island Grove 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 Island Grove Township
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 62670 | 28% | 2,682 | $708 | $211,900 | $78,750 |
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 Island Grove Township
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Berlin | 0.4 mi | — | — | 3.5% |
| New Berlin | 2.7 mi | $643 | $163,400 | 24.1% |
| New Berlin Township | 3.2 mi | $643 | $166,900 | 23.4% |
| Cartwright Township | 5.4 mi | $1,079 | $174,000 | 13.0% |
| Curran | 6.7 mi | $850 | $107,100 | 19.2% |
| Loami | 6.8 mi | $907 | $131,900 | 24.3% |
| Curran Township | 7.4 mi | $1,287 | $244,700 | 15.6% |
| Pleasant Plains | 7.8 mi | $1,079 | $169,000 | 16.6% |
HUD Fair Market Rent for Island Grove 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 Island Grove 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 Island Grove Township
What is the median household income in Island Grove Township?
The median household income in Island Grove Township is $95,208 (±$22,483) a year (2020–2024 American Community Survey).
What is the average home value in Island Grove Township, IL?
The Census Bureau publishes the median: $274,200 (±$61,146) for owner-occupied homes in Island Grove Township (2020–2024 American Community Survey).
What is the average mortgage payment in Island Grove Township?
The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Island Grove Township, IL is $1,683 (±$763) a month, including taxes, insurance and utilities.
How much are property taxes in Island Grove Township?
The median real estate tax paid by homeowners in Island Grove Township, IL is $3,945 (±$569) a year (2020–2024 American Community Survey).
How many homes are in Island Grove Township?
Island Grove Township, IL has an estimated 241 (±60) housing units, occupied and vacant (2020–2024 American Community Survey).
How old are most homes in Island Grove Township?
40.2% of homes in Island Grove Township, IL were built before 1980 (2020–2024 American Community Survey).
Is Island Grove Township growing?
In Island Grove Township, the number of residents went from 574 in 2015–2019 to 467 in 2020–2024 (−18.6%), not a measurable change.
What ZIP codes are in Island Grove Township?
The ZIP code that covers Island Grove Township is 62670.
What is the median rent in ZIP code 62670?
The median gross rent in ZIP Code Tabulation Area 62670 is $708 (±$128) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Island Grove township, Sangamon County, Illinois
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Island Grove township, Sangamon County, Illinois
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Island Grove township, Sangamon County, Illinois
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Island Grove township, Sangamon County, Illinois
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Island Grove township, Sangamon County, Illinois
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Island Grove township, Sangamon County, Illinois
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Island Grove 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 Island Grove township, Sangamon County, Illinois (county subdivision:37881, 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 .