The Town FilesMount Carroll, Illinois
City in Carroll County · population 1,479 (2020 Census)
- Median home
- $86,600
- Household income
- $58,500
- Jan low / Jul high
- 11° / 85°
- Snow a year
- 33 in
- Tornadoes ≤10 mi since 1950
- 16
- Median age
- 43.2
Mount Carroll is a city of 1,479 people in Carroll County, Illinois. The median home is worth $86,600, below the typical Illinois town ($156,600). It ranks better for retirees than 90% of Illinois towns, hipper than 89% of Illinois towns.
How Mount Carroll 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 Mount Carroll is worth $86,600, below the typical Illinois town ($156,600). Homes cost about 1.5 times the median household income of $58,500, which is more affordable than 90% of Illinois towns. Median rent is $785 a month. 71.7% of households own their home.
| Housing | Mount Carroll | Typical Illinois town |
|---|---|---|
| Median home value | $86,600 | $156,600 |
| Median rent | $785 | $960 |
| Median household income | $58,500 | $72,500 |
| Home value ÷ income | 1.5× | 2.2× |
| Homeownership | 71.7% | 76.6% |
| Median year built | 1946 | 1967 |
| Seasonal / vacation homes | 3.1% | — |
Who lives in Mount Carroll
| People | Mount Carroll | Typical Illinois town |
|---|---|---|
| Median age | 43.2 | 40.4 |
| Age 65 and over | 21.7% | 18.7% |
| Under 18 | 19.2% | — |
| Bachelor's degree or higher | 21.5% | 21.8% |
| Below the poverty line | 14.1% | 9.9% |
| Veterans | 8.3% | — |
| Born outside the U.S. | 2.3% | — |
| Work from home | 6.6% | 8.9% |
| Average commute | 26.0 min | 26.1 min |
| Homes with broadband | 94.0% | 90.4% |
Weather in Mount Carroll
July highs average 84.9°F and January lows 10.9°F. About 40.3 inches of rain and melted snow fall a year, with 33.4 inches of snow (typical Illinois town: 24.2 in). Expect about 19 days a year at 90°F or hotter and 155 nights at or below freezing.
Tornadoes, storms and disasters
16 tornadoes have passed within 10 miles of Mount Carroll since 1950, compared with 27 for the typical Illinois town. 4 rated (E)F2 or stronger. The strongest, an F3, struck on January 24, 1967 about 0.1 miles from the town center. The most recent was on April 2, 2026.
Hail of 1 inch or larger has been reported within 10 miles 24 times; the largest was 3.00 inches on April 2, 2026.
Severe weather in Carroll County since 1996
Carroll County has been included in 16 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 |
| September 19, 2019 | Flood | DR-4461: Severe Storms And Flooding |
| May 10, 2013 | Flood | DR-4116: Severe Storms, Straight-Line Winds, And Flooding |
| March 17, 2011 | Snowstorm | DR-1960: Severe Winter Storm And Snowstorm |
Jobs and pay in Carroll County
Carroll County had 3,955 jobs in 2024, paying an average of $46,933 a year. Unemployment was 4.4% in 2023; in Mount Carroll itself the ACS puts it at 3.2%.
Public schools in Mount Carroll
1 public school with 181 students, about 12.9 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| West Carroll Middle School | 6-8 | 181 | 12.9 |
Towns near Mount Carroll
- Lanark, IL7.4 mi · 1,504 people · home $96,600
- Lake Carroll, IL7.8 mi · 852 people · home $348,500
- Savanna, IL8.3 mi · 2,783 people · home $72,400
- Sabula, IA10.7 mi · 506 people · home $133,300
- Thomson, IL10.8 mi · 1,610 people · home $117,000
- Shannon, IL12.8 mi · 801 people · home $115,100
- Milledgeville, IL13.8 mi · 1,026 people · home $94,200
- Pearl City, IL14.1 mi · 790 people · home $128,200
Mount Carroll questions
Is Mount Carroll, Illinois a good place to retire?
On The Town Files lifestyle rankings, Mount Carroll scores better for retirees than 90% of Illinois towns and quieter than 69%. 21.7% of residents are 65 or older (median age 43.2).
How much does a house cost in Mount Carroll?
The median owner-occupied home in Mount Carroll is valued at $86,600 (Census ACS 2020–2024), against a median household income of $58,500, so homes cost about 1.5 times income. Median rent is $785 a month.
What is the weather like in Mount Carroll?
July highs average 84.9°F and January lows 10.9°F (NOAA 1991–2020 normals). It gets about 40.3 inches of precipitation a year and 33.4 inches of snow.
Does Mount Carroll get tornadoes?
16 tornadoes have passed within 10 miles of Mount Carroll since 1950 (NOAA Storm Events); the strongest was a F3 on January 24, 1967. 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)