Rock City
Property Data

Stephenson County, Illinois

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

Stephenson County

ZIP Codesby Total Population

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Total Population
1,3221,322

DistributionTotal Population

No data available

Demographics

Total Population

1,322

Median Age

52.0

Population Under 18

21.2%

Population 65+

21.9%

Total Households

488

Average Household Size

2.71

Rock City, 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 Rock City, IL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
610701,322$84,167$64290.4%

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 Rock City, 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 records0Recorded——
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 .

Recorded property statistics

Reported property statistics for Rock City, IL
MeasureRock City, ILStephenson County, IL
Median recorded sale amount—$125,250
Recorded amount, 10th percentile—$68,200
Recorded amount, 90th percentile—$228,000
Average recorded floor area (sq ft)1,8491,850
Average recorded bedrooms33
Average recorded bathrooms1.51.6
Median year built19481950
Condominium share of properties0%2%

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

County input file published Oct 24, 2026. Calculated . Published . Dataset last refreshed: .

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

County input file published Oct 24, 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.

Properties in Rock City

Showing page 1 of properties

100 East Jefferson Avenue

Rock City, IL 61070

100 North Main Street

Rock City, IL 61070

10010 North Rock City Road

Rock City, IL 61070

10014 North Rock City Road

Rock City, IL 61070

101 North Congress Street

Rock City, IL 61070

101 North Main Street

Rock City, IL 61070

101 South Main

Rock City, IL 61070

101 South Main Street

Rock City, IL 61070

101-107 Congress

Rock City, IL 61070

10173 North Dakota Road

Rock City, IL 61070

102 Hillcrest Drive

Rock City, IL 61070

102 North Clay Street

Rock City, IL 61070

102 South Main Street

Rock City, IL 61070

102 West Jefferson Avenue

Rock City, IL 61070

10269 North Henze Road

Rock City, IL 61070

103 Jackson And 204-206 W Market

Rock City, IL 61070

103 North Congress Street

Rock City, IL 61070

103 South Main Street

Rock City, IL 61070

103 West Market Street

Rock City, IL 61070

10309 North Rock City Road

Rock City, IL 61070

10330 North Rock City Road

Rock City, IL 61070

10378 North Eggert Road

Rock City, IL 61070

104 East Jefferson Avenue

Rock City, IL 61070

104 East Market

Rock City, IL 61070

104 East Market Street

Rock City, IL 61070

104 North Clay Street

Rock City, IL 61070

104 North Congress Street

Rock City, IL 61070

104 North Main Street

Rock City, IL 61070

104 West Market Street

Rock City, IL 61070

105 North Clay Street

Rock City, IL 61070

105 North Washington Street

Rock City, IL 61070

105 South Main Street

Rock City, IL 61070

106 North Main Street

Rock City, IL 61070

106 North Washington Street

Rock City, IL 61070

106 West Jefferson Avenue

Rock City, IL 61070

107 North Clay Street

Rock City, IL 61070

107 West Market Street

Rock City, IL 61070

107-109 North Main

Rock City, IL 61070

107-109 North Main Street

Rock City, IL 61070

108 Douglas Street

Rock City, IL 61070

108 North Main Street

Rock City, IL 61070

108 South Main

Rock City, IL 61070

108 South Main Street

Rock City, IL 61070

10826 North Henze Road

Rock City, IL 61070

10828 North Henze Road

Rock City, IL 61070

109 East Clay

Rock City, IL 61070

109 West Market Street

Rock City, IL 61070

110 Hillcrest Drive

Rock City, IL 61070

110 North Jackson Street

Rock City, IL 61070

110 North Washington Street

Rock City, IL 61070

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