Dahlgren
Property Data

Hamilton County, Illinois

Explore accurate parcel and ownership records,
directly sourced from county assessors.

Hamilton County

ZIP Codesby Total Population

Loading map...
Total Population
1,8011,801

DistributionTotal Population

No data available

Demographics

Total Population

1,801

Median Age

35.4

Population Under 18

29.4%

Population 65+

19.0%

Total Households

683

Average Household Size

2.64

Dahlgren, IL housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Dahlgren, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
628281,801$70,583$43180.7%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Dahlgren, IL. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records1Recorded——
Average recorded sale amount———

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: May 2025; not verified completeness.

Recorded property statistics

Reported property statistics for Dahlgren, IL
MeasureDahlgren, ILHamilton County, IL
Median recorded sale amount—$135,250
Recorded amount, 10th percentile—$79,250
Recorded amount, 90th percentile—$191,250
Average recorded floor area (sq ft)2,5002,131
Average recorded bedrooms2.82.9
Average recorded bathrooms1.71.7
Median year built19771961
Condominium share of properties0%0%

Dahlgren, IL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

Hamilton County, IL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 23, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

No supported recent-period estimates are available for this area. Recorded statistics above remain available.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: May 2025; not a verified completeness date.

Properties in Dahlgren

Showing page 5 of properties

19111 State Route 142

Dahlgren, IL 62828

1921 County Road 1400 North

Dahlgren, IL 62828

19281 State Route 142

Dahlgren, IL 62828

19283 County Road 200 East

Dahlgren, IL 62828

1931 Dahlgren East Road

Dahlgren, IL 62828

1932 Dahlgren East Road

Dahlgren, IL 62828

19320 County Road 775 East

Dahlgren, IL 62828

1934 County Road 2100 North

Dahlgren, IL 62828

19361 County Road 700 East

Dahlgren, IL 62828

19393 State Route 142

Dahlgren, IL 62828

19459 State Route 142

Dahlgren, IL 62828

19480 County Road 200 East

Dahlgren, IL 62828

19531 County Road 775 East

Dahlgren, IL 62828

19599 County Road 500 East

Dahlgren, IL 62828

19660 County Road 300 East

Dahlgren, IL 62828

19682 County Road 625 East

Dahlgren, IL 62828

19718 County Road 200 East

Dahlgren, IL 62828

19750 County Road 700 East

Dahlgren, IL 62828

19750 State Route 242

Dahlgren, IL 62828

19751 County Road 300 East

Dahlgren, IL 62828

19757 County Road 500 East

Dahlgren, IL 62828

19788 County Road 775 East

Dahlgren, IL 62828

19798 County Road 450 East

Dahlgren, IL 62828

19802 County Road 200 East

Dahlgren, IL 62828

19859 County Road 200 East

Dahlgren, IL 62828

19860 County Road 300 East

Dahlgren, IL 62828

19887 State Route 242

Dahlgren, IL 62828

2

Dahlgren, IL 62828

2

Dahlgren, IL 62828

2 Holly Street

Dahlgren, IL 62828

20014 Belle Prairie Road

Dahlgren, IL 62828

20092 County Road 300 East

Dahlgren, IL 62828

201 E Route 142

Dahlgren, IL 62828

201 North 6th Street

Dahlgren, IL 62828

201 South 2nd Street

Dahlgren, IL 62828

201 South 3rd Street

Dahlgren, IL 62828

201 South 4th Street

Dahlgren, IL 62828

201 South 5th Street

Dahlgren, IL 62828

201 West Main Street

Dahlgren, IL 62828

20139 County Road 200 East

Dahlgren, IL 62828

2014 Dahlgren East Road

Dahlgren, IL 62828

20153 County Road 200 East

Dahlgren, IL 62828

202 East Fir Street

Dahlgren, IL 62828

202 North 6th Street

Dahlgren, IL 62828

202 South 1st Street

Dahlgren, IL 62828

202 South 1st Street

Dahlgren, IL 62828

202 South 3rd Street

Dahlgren, IL 62828

202 South 4th Street

Dahlgren, IL 62828

202 West Chestnut Street

Dahlgren, IL 62828

202 West Market Street

Dahlgren, IL 62828

Access Hamilton County, IL Property Data Through Our Enterprise API

Get instant access to comprehensive county assessors-based property data with your free API key

Need Bulk Data?

Email us at hello@realie.ai