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IL area data

Sullivan, IL

Sullivan, IL.

Population: 7,787 (Census ACS)

Home values & appreciation

Median home value
$200,736
1-year appreciation
+8.6%
3-year appreciation
+29.9%
5-year appreciation
+40.4%
10-year appreciation
+86.0%
All-time peak (2026-07)
$200,736
House Price Index
325.3 (+6.1% YoY)

Market activity

New listings (monthly)
8

Affordability

Cost of living index (Average)
97.3 (100 = US avg)
Electricity rate (state-level)
17.7¢/kWh
Natural gas rate (state-level)
$11.30/MCF
30-year mortgage rate (national)
6.66%
15-year mortgage rate (national)
6.00%

Schools

Total schools
3
Elementary schools
1
Middle schools
1
High schools
1

Natural hazards & flood risk

Overall hazard risk
Relatively Low
Top hazards
coldWave, drought, strongWind

Climate (30-year normals)

Average annual temperature
53.0°F
Average high
64.0°F
Average low
43.0°F
Annual precipitation
43.9 in

Amenities

National parks within ~60 mi
2
Nearest national park
Springfield 1908 Race Riot National Monument (56 mi)
Nearest airport
Alms Restricted Landing Area (1 mi)
Nearest major airport
Decatur Airport (DEC) (21 mi)
Hospitals nearby (~15 mi)
1,090
Avg hospital rating
3.1 / 5
Solar radiation rating
Fair (4.1 kWh/m²/day)

Migration

Net migration
+5 tax filers

Housing stock

Median year housing built
1,971
Median annual property tax
$3,007
Mean commute to work
19 min
Households with broadband internet
61.9%

Employment & development

Total county employment
4,558
Average weekly wage
$958
Top industries (by employment)
Accommodation & Food, Information, Professional Services
Annual residential building permits (county)
23

Area data compiled from public government, academic, and industry research feeds. Data sources →

Data last updated

Most recent source refresh: Aug 2026. See all data sources →

Data compiled by REAIGENT7 — AI listing platform for real estate agents