Sumas
Property Data

Whatcom County, Washington

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

Whatcom County

ZIP Codesby Total Population

Loading map...
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 1 of properties

1001 Garfield Street

Sumas, WA 98295

1001 Tower Road

Sumas, WA 98295

1002 Johnson Street

Sumas, WA 98295

1002 Tower Road

Sumas, WA 98295

1003 Tower Road

Sumas, WA 98295

1004 Tower Road

Sumas, WA 98295

1005 Johnson Street

Sumas, WA 98295

1005 Tower Road

Sumas, WA 98295

1006 Tower Road

Sumas, WA 98295

1007 Maple Lane

Sumas, WA 98295

1008 Maple Lane

Sumas, WA 98295

1009 Maple Lane

Sumas, WA 98295

101 Ridgeview Street

Sumas, WA 98295

1010 Cherry Street

Sumas, WA 98295

1010 Maple Lane

Sumas, WA 98295

1011 Lawson Street

Sumas, WA 98295

1011 Maple Lane

Sumas, WA 98295

1011 Sumas Avenue

Sumas, WA 98295

1012 Maple Lane

Sumas, WA 98295

1013 Maple Lane

Sumas, WA 98295

1014 Maple Lane

Sumas, WA 98295

1015 Cherry Street

Sumas, WA 98295

1015 Maple Lane

Sumas, WA 98295

1016 Maple Lane

Sumas, WA 98295

1017 Maple Lane

Sumas, WA 98295

1018 Maple Lane

Sumas, WA 98295

1018 Sumas Avenue

Sumas, WA 98295

1019 Maple Lane

Sumas, WA 98295

102 Cornerstone Drive

Sumas, WA 98295

102 Ridgeview Street

Sumas, WA 98295

1020 Maple Lane

Sumas, WA 98295

1021 Lawson Street

Sumas, WA 98295

1021 Maple Lane

Sumas, WA 98295

1022 Maple Lane

Sumas, WA 98295

1023 Maple Lane

Sumas, WA 98295

1024 Lawson Street

Sumas, WA 98295

1024 Maple Lane

Sumas, WA 98295

1025 Maple Lane

Sumas, WA 98295

1026 Maple Lane

Sumas, WA 98295

1027 Maple Lane

Sumas, WA 98295

1028 Maple Lane

Sumas, WA 98295

1029 Maple Lane

Sumas, WA 98295

103 Ridgeview Street

Sumas, WA 98295

1030 Maple Lane

Sumas, WA 98295

1031 Exit Road

Sumas, WA 98295

1032 Cherry Street

Sumas, WA 98295

1032 Exit Road

Sumas, WA 98295

1033 Exit Road

Sumas, WA 98295

1034 Exit Road

Sumas, WA 98295

1035 Exit Road

Sumas, WA 98295

Access Whatcom County, WA 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