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IL area data

Posen, IL

Posen, IL.

Population: 5,205 (Census ACS)

Home values & appreciation

Median home value
$207,496
1-year appreciation
+3.7%
3-year appreciation
+11.0%
5-year appreciation
+27.2%
10-year appreciation
+113.7%
All-time peak (2026-07)
$207,496
House Price Index
325.3 (+6.1% YoY)

Market activity

Median sale price
$215,000
Median list price
$219,900
Median days on market
70 days
Sale-to-list ratio
98.3%
Active listings
8
1-year forecast
+2.3%

Rents

Typical rent
$1,700/mo
1BR fair-market rent
$1,480/mo
3BR fair-market rent
$2,150/mo

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
2
Elementary schools
2
Middle schools
0
High schools
0

Natural hazards & flood risk

Overall hazard risk
Very High
Top hazards
coldWave, heatWave, iceStorm, inlandFlooding, lightning
FEMA flood zone
A
Flood risk level
High

Climate (30-year normals)

Average annual temperature
53.0°F
Average high
61.0°F
Average low
44.0°F
Annual precipitation
46.1 in
Annual snowfall
17.4 in

Air quality

Air quality rating
Moderate
Median AQI (annual)
57
Days with Good air quality
104
Days with Unhealthy air quality
5

Walkability & transit

Walkability index
13.8 / 20
Transit service frequency
865

Amenities

National parks within ~60 mi
2
Nearest national park
Pullman National Historical Park (6 mi)
Nearest airport
Lansing Municipal Airport (10 mi)
Nearest major airport
Chicago Midway International Airport (MDW) (11 mi)
Hospitals nearby (~15 mi)
32
Avg hospital rating
2.5 / 5
EV charging stations (within 10 mi)
100
Solar radiation rating
Fair (3.9 kWh/m²/day)

Migration

Net migration
-29,533 tax filers

Housing stock

Median year housing built
1,963
Median annual property tax
$3,302
Mean commute to work
24 min
Households with broadband internet
68.2%

Employment & development

Total county employment
2,269,519
Average weekly wage
$1,625
Top industries (by employment)
Health Care, Professional Services, Accommodation & Food
Annual residential building permits (county)
987

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