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 7 of properties

125 Ridgeview Street

Sumas, WA 98295

1250 Sumas Avenue

Sumas, WA 98295

126 Cornerstone Drive

Sumas, WA 98295

126 Roosevelt Court

Sumas, WA 98295

127 Cleveland Avenue

Sumas, WA 98295

127 Cornerstone Drive

Sumas, WA 98295

127 Morton Street

Sumas, WA 98295

128 Cleveland Avenue

Sumas, WA 98295

128 Morton Street

Sumas, WA 98295

129 1st Street

Sumas, WA 98295

129 Mitchell Street

Sumas, WA 98295

130 3rd Street

Sumas, WA 98295

130 Cornerstone Drive

Sumas, WA 98295

130 Front Street

Sumas, WA 98295

130 Garfield Street

Sumas, WA 98295

1301 Deep Valley Drive

Sumas, WA 98295

1305 Boon Street Apt 122

Sumas, WA 98295

1305 Boon Street Apt 115

Sumas, WA 98295

1305 Boon Street Apt 211

Sumas, WA 98295

1305 Boon Street Apt 224

Sumas, WA 98295

1305 Boon Street Apt 109

Sumas, WA 98295

1305 Boon Street Apt 113

Sumas, WA 98295

1305 Boon Street Apt 125

Sumas, WA 98295

1305 Boon Street Apt 225

Sumas, WA 98295

1305 Boon Street Apt 114

Sumas, WA 98295

1305 Boon Street Apt 209

Sumas, WA 98295

1305 Boon Street Apt 118

Sumas, WA 98295

1305 Boon Street Apt 117

Sumas, WA 98295

1305 Boon Street Apt 220

Sumas, WA 98295

1305 Boon Street Apt 216

Sumas, WA 98295

1305 Boon Street Apt 214

Sumas, WA 98295

1305 Boon Street Apt 218

Sumas, WA 98295

1305 Boon Street Apt 226

Sumas, WA 98295

1305 Boon Street Apt 215

Sumas, WA 98295

1305 Boon Street Apt 111

Sumas, WA 98295

1305 Boon Street Apt 121

Sumas, WA 98295

1305 Boon Street Apt 126

Sumas, WA 98295

1305 Boon Street Apt 119

Sumas, WA 98295

1305 Boon Street

Sumas, WA 98295

1305 Boon Street Apt 212

Sumas, WA 98295

1305 Boon Street Apt 223

Sumas, WA 98295

1305 Boon Street Apt 112

Sumas, WA 98295

1305 Boon Street Apt 217

Sumas, WA 98295

1305 Boon Street Apt 116

Sumas, WA 98295

1305 Boon Street Apt 110

Sumas, WA 98295

1305 Boon Street Apt 210

Sumas, WA 98295

1305 Boon Street Apt 124

Sumas, WA 98295

1305 Boon Street Apt 221

Sumas, WA 98295

1305 Boon Street Apt 219

Sumas, WA 98295

1305 Boon Street Apt 222

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