Carthage, IL
Full City Profile · Illinois · Hancock County County
3.6
/5.0
B+
Good
2,508
Population
999/sq mi density
$75,179
Median Income
$37,308 per capita
$115,600
Home Value
$123,139 Zillow
$679
Median Rent
20.8% income on rent
53°F
Avg Temperature
110
Violent Crime/100K
220 property/100K
B+
Overall
3.6 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
4.5 / 5.0
$75,179 median income, 0.6% unemployment
A+
Affordability
5.0 / 5.0
$115,600 home value, $679/mo rent
F
Safety
1.0 / 5.0
110 violent crimes/100K
A
Education
4.0 / 5.0
37.5% bachelor's degree or higher
Carthage experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 26°F in January while summers reach 76°F in July. Annual precipitation totals 41.3 inches. The area receives 21.5 inches of snow annually.
Temperature
26°F Jan (-3°C)
76°F Jul (25°C)
| Annual Average | 52.8°F |
| 2% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 76°F (25°C) |
Geography
| Elevation | 661 ft (201 m) |
| Area | 2.4 sq mi (6.3 km²) |
| Population Density | 999/sq mi |
| Coordinates | 40.4143°N, 91.1281°W |
| Timezone | America/Chicago |
| County | Hancock County County |
| Nearest Airport | Southeast Iowa Regional (BRL) 25 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 31.1 / 100 |
| Social Vulnerability | 64.8 / 100 |
| Community Resilience | 61.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 1.8 in | Coldest, Driest |
| February | 30°F (-1°C) | 2.0 in | |
| March | 41°F (5°C) | 2.6 in | |
| April | 53°F (12°C) | 4.3 in | |
| May | 64°F (18°C) | 5.2 in | |
| June | 73°F (23°C) | 5.2 in | Wettest |
| July | 76°F (25°C) | 4.2 in | Warmest |
| August | 74°F (24°C) | 4.1 in | |
| September | 67°F (20°C) | 3.7 in | |
| October | 55°F (13°C) | 3.4 in | |
| November | 42°F (6°C) | 2.8 in | |
| December | 31°F (-0°C) | 2.0 in |
Carthage has a seasonal temperature swing of 51°F / from 26°F in January to 76°F in July. Total annual precipitation is 41.3 inches, with June being the wettest month (5.2") and January the driest (1.8").