The Town FilesTwin Grove, Illinois
Community in McLean County · population 1,524 (2020 Census)
- Median home
- $264,800
- Household income
- $116,250
- Jan low / Jul high
- 16° / 84°
- Snow a year
- 7 in
- Tornadoes ≤10 mi since 1950
- 27
- Median age
- 49.4
Twin Grove is a community of 1,524 people in McLean County, Illinois. The median home is worth $264,800, above the typical Illinois town ($156,600). It ranks better for families than 88% of Illinois towns, better for first-time buyers than 86% of Illinois towns, more upscale than 85% of Illinois towns.
How Twin Grove ranks
Percentile among Illinois towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Illinois towns.
Homes and cost of living
The median home in Twin Grove is worth $264,800, above the typical Illinois town ($156,600). Homes cost about 2.3 times the median household income of $116,250, which is more affordable than 45% of Illinois towns. 97.1% of households own their home.
| Housing | Twin Grove | Typical Illinois town |
|---|---|---|
| Median home value | $264,800 | $156,600 |
| Median rent | — | $960 |
| Median household income | $116,250 | $72,500 |
| Home value ÷ income | 2.3× | 2.2× |
| Homeownership | 97.1% | 76.6% |
| Median year built | 1985 | 1967 |
| Seasonal / vacation homes | 0.0% | — |
Who lives in Twin Grove
| People | Twin Grove | Typical Illinois town |
|---|---|---|
| Median age | 49.4 | 40.4 |
| Age 65 and over | 27.2% | 18.7% |
| Under 18 | 21.7% | — |
| Bachelor's degree or higher | 59.7% | 21.8% |
| Below the poverty line | 4.2% | 9.9% |
| Veterans | 9.0% | — |
| Born outside the U.S. | 2.7% | — |
| Work from home | 24.4% | 8.9% |
| Average commute | 23.2 min | 26.1 min |
| Homes with broadband | 99.3% | 90.4% |
Weather in Twin Grove
July highs average 84.2°F and January lows 15.6°F. About 40.4 inches of rain and melted snow fall a year, with 6.5 inches of snow (typical Illinois town: 24.2 in). Expect about 26 days a year at 90°F or hotter and 132 nights at or below freezing.
Tornadoes, storms and disasters
27 tornadoes have passed within 10 miles of Twin Grove since 1950, compared with 27 for the typical Illinois town. 4 rated (E)F2 or stronger. The strongest, an F3, struck on April 19, 1996 about 8.6 miles from the town center. The most recent was on June 4, 2008.
Hail of 1 inch or larger has been reported within 10 miles 69 times; the largest was 4.50 inches on May 9, 2003.
Severe weather in McLean County since 1996
McLean County has been included in 11 federal disaster or emergency declarations since 1953, most often for flood, tornado, hurricane.
| Declared | Incident | Declaration |
|---|---|---|
| March 26, 2020 | Biological | DR-4489: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3435: Covid-19 |
| March 17, 2011 | Snowstorm | DR-1960: Severe Winter Storm And Snowstorm |
| February 9, 2007 | Severe Ice Storm | DR-1681: Severe Winter Storm |
| September 7, 2005 | Hurricane | EM-3230: Hurricane Katrina Evacuation |
Jobs and pay in McLean County
McLean County had 88,945 jobs in 2024, paying an average of $66,183 a year. Unemployment was 3.9% in 2023; in Twin Grove itself the ACS puts it at 0%.
Towns near Twin Grove
- Danvers, IL5.2 mi · 1,089 people · home $166,200
- Normal, IL6.4 mi · 52,736 people · home $213,600
- Bloomington, IL6.9 mi · 78,680 people · home $203,300
- Stanford, IL7.1 mi · 600 people · home $115,300
- Carlock, IL7.3 mi · 548 people · home $154,600
- Hudson, IL10.5 mi · 1,753 people · home $224,700
- Minier, IL11.6 mi · 1,154 people · home $148,400
- McLean, IL12.0 mi · 743 people · home $140,400
Twin Grove questions
Is Twin Grove, Illinois a good place to retire?
On The Town Files lifestyle rankings, Twin Grove scores better for retirees than 78% of Illinois towns and quieter than 81%. 27.2% of residents are 65 or older (median age 49.4).
How much does a house cost in Twin Grove?
The median owner-occupied home in Twin Grove is valued at $264,800 (Census ACS 2020–2024), against a median household income of $116,250, so homes cost about 2.3 times income. Median rent is — a month.
What is the weather like in Twin Grove?
July highs average 84.2°F and January lows 15.6°F (NOAA 1991–2020 normals). It gets about 40.4 inches of precipitation a year and 6.5 inches of snow.
Does Twin Grove get tornadoes?
27 tornadoes have passed within 10 miles of Twin Grove since 1950 (NOAA Storm Events); the strongest was a F3 on April 19, 1996. The typical Illinois town has had 27.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)