Rock Island
Property Data

Douglas County, Washington

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

Douglas County

ZIP Codesby Total Population

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Total Population
2,0322,032

DistributionTotal Population

No data available

Demographics

Total Population

2,032

Median Age

37.1

Population Under 18

26.8%

Population 65+

12.9%

Total Households

684

Average Household Size

2.80

Rock Island, WA 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 Island, WA
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
988502,032$83,125$1,03182.0%

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 Island, WA. 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 records25Recorded——
Average recorded sale amount$550,902Recorded——

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: June 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Rock Island, WA
MeasureRock Island, WADouglas County, WA
Median recorded sale amount$479,900$495,563
Recorded amount, 10th percentile$357,400$286,875
Recorded amount, 90th percentile$1,219,500$831,098
Average recorded floor area (sq ft)1,8172,123
Average recorded bedrooms33
Average recorded bathrooms22
Median year built19931988
Condominium share of properties0%1.7%

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

County input file published Oct 25, 2026. Calculated . Published . Dataset last refreshed: .

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

County input file published Oct 25, 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: June 2026; not a verified completeness date.

Properties in Rock Island

Showing page 1 of properties

1 Baker Avenue

Rock Island, WA 98850

1 Douglas Street

Rock Island, WA 98850

1 Hanna Avenue

Rock Island, WA 98850

1 Indiana Avenue

Rock Island, WA 98850

1 Jefferson Avenue

Rock Island, WA 98850

1 Rock Island Drive

Rock Island, WA 98850

1 South Garden Avenue

Rock Island, WA 98850

10 1st Street Northeast

Rock Island, WA 98850

10 Akron Avenue

Rock Island, WA 98850

10 Cambridge Avenue

Rock Island, WA 98850

10 Douglas Street

Rock Island, WA 98850

10 Elgin Avenue

Rock Island, WA 98850

10 Fremont Avenue

Rock Island, WA 98850

10 Hanna Avenue

Rock Island, WA 98850

10 Indiana Avenue

Rock Island, WA 98850

10 Jefferson Avenue

Rock Island, WA 98850

10 Keane Avenue

Rock Island, WA 98850

10 South Garden Avenue

Rock Island, WA 98850

100 4th Street Southwest

Rock Island, WA 98850

100 4th Street Southwest

Rock Island, WA 98850

100 Rock Island Drive

Rock Island, WA 98850

100 Rock Island Drive

Rock Island, WA 98850

101 Riesling Drive

Rock Island, WA 98850

101 Rock Island Drive

Rock Island, WA 98850

102 Hanna Place

Rock Island, WA 98850

103 George Loop

Rock Island, WA 98850

103 North Garden Avenue

Rock Island, WA 98850

103 Rock Island Drive

Rock Island, WA 98850

104 George Loop

Rock Island, WA 98850

104 Hanna Place

Rock Island, WA 98850

104 Island Loop

Rock Island, WA 98850

1046 State Route 28

Rock Island, WA 98850

1046 State Route 28

Rock Island, WA 98850

105 3rd Street Southwest

Rock Island, WA 98850

105 3rd Street Southwest

Rock Island, WA 98850

105 Hanna Place

Rock Island, WA 98850

105 Laurel Estates

Rock Island, WA 98850

105 North Garden Avenue

Rock Island, WA 98850

1050 State Route 28

Rock Island, WA 98850

106 Columbia Siding Road

Rock Island, WA 98850

106 Hanna Place

Rock Island, WA 98850

106 Laurel Estates

Rock Island, WA 98850

107 Hanna Place

Rock Island, WA 98850

107 North Garden Avenue

Rock Island, WA 98850

107 Rock Island Drive

Rock Island, WA 98850

108 Hanna Place

Rock Island, WA 98850

109 Hanna Place

Rock Island, WA 98850

109 North Garden Avenue

Rock Island, WA 98850

11 Cambridge Avenue

Rock Island, WA 98850

11 Elgin Avenue

Rock Island, WA 98850

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