Sumas
Property Data

Whatcom County, Washington

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

Whatcom County

ZIP Codesby Total Population

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Total Population
3,2793,279

DistributionTotal Population

No data available

Demographics

Total Population

3,279

Median Age

37.1

Population Under 18

32.9%

Population 65+

11.6%

Total Households

1,150

Average Household Size

2.85

Sumas, 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 Sumas, WA
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
982953,279$98,965$1,37658.4%

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 Sumas, 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 records40Recorded——
Average recorded sale amount$392,640Recorded——

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 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Sumas, WA
MeasureSumas, WAWhatcom County, WA
Median recorded sale amount$430,000$597,000
Recorded amount, 10th percentile$135,000$324,892
Recorded amount, 90th percentile$726,500$1,061,700
Average recorded floor area (sq ft)1,8192,005
Average recorded bedrooms2.92.9
Average recorded bathrooms1.82
Median year built19901988
Condominium share of properties2.1%6.2%

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

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

Whatcom 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: May 2026; not a verified completeness date.

Properties in Sumas

Showing page 8 of properties

1305 Boon Street Apt 123

Sumas, WA 98295

1305 Boon Street Apt 120

Sumas, WA 98295

1305 Boon Street Apt 213

Sumas, WA 98295

131 Barker Street

Sumas, WA 98295

131 Columbia Street

Sumas, WA 98295

131 Cornerstone Drive

Sumas, WA 98295

131 Garfield Street

Sumas, WA 98295

131 Harrison Street

Sumas, WA 98295

132 Cherry Street

Sumas, WA 98295

132 Morton Street

Sumas, WA 98295

133 Morton Street

Sumas, WA 98295

1332 Sumas Avenue

Sumas, WA 98295

134 Cornerstone Drive

Sumas, WA 98295

134 Harrison Street

Sumas, WA 98295

1340 Cherry Street

Sumas, WA 98295

1340 Thompson Lane

Sumas, WA 98295

1342 Sumas Avenue

Sumas, WA 98295

135 2nd Street

Sumas, WA 98295

135 Barker Street

Sumas, WA 98295

135 Front Street

Sumas, WA 98295

135 Garfield Street

Sumas, WA 98295

136 1st Street

Sumas, WA 98295

138 3rd Street

Sumas, WA 98295

138 Cornerstone Drive

Sumas, WA 98295

1400 Boon Street

Sumas, WA 98295

1401 Boon Street

Sumas, WA 98295

1409 Boon Street

Sumas, WA 98295

141 Garfield Street

Sumas, WA 98295

142 Cherry Street

Sumas, WA 98295

142 Cornerstone Drive

Sumas, WA 98295

142 Mitchell Street

Sumas, WA 98295

1425 Boon Street

Sumas, WA 98295

1425 Boon Street

Sumas, WA 98295

143 Columbia Street

Sumas, WA 98295

143 Garfield Street

Sumas, WA 98295

143 Harrison Street

Sumas, WA 98295

143 Vancouver Street

Sumas, WA 98295

1430 Boon Street

Sumas, WA 98295

1433 Boon Street

Sumas, WA 98295

1440 Boon Street

Sumas, WA 98295

1440 Sumas Avenue

Sumas, WA 98295

1441 Boon Street

Sumas, WA 98295

1444 Cherry Street

Sumas, WA 98295

1449 Boon Street

Sumas, WA 98295

145 Cherry Street

Sumas, WA 98295

145 Second Street

Sumas, WA 98295

1457 Boon Street

Sumas, WA 98295

146 1st Street

Sumas, WA 98295

146 Cherry Street

Sumas, WA 98295

146 Cleveland Avenue

Sumas, WA 98295

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