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 4 of properties

1111 Alder Lane

Sumas, WA 98295

1112 Alder Lane

Sumas, WA 98295

1113 Alder Lane

Sumas, WA 98295

1114 Alder Lane

Sumas, WA 98295

1115 Alder Lane

Sumas, WA 98295

1116 Alder Lane

Sumas, WA 98295

1116 Sumas Avenue

Sumas, WA 98295

1117 Alder Lane

Sumas, WA 98295

1118 Alder Lane

Sumas, WA 98295

1119 Alder Lane

Sumas, WA 98295

112 Columbia Street

Sumas, WA 98295

112 Columbia Street

Sumas, WA 98295

1120 Alder Lane

Sumas, WA 98295

1120 Victoria Street

Sumas, WA 98295

1121 Alder Lane

Sumas, WA 98295

1122 Alder Lane

Sumas, WA 98295

1122 Cherry Street

Sumas, WA 98295

1123 Alder Lane

Sumas, WA 98295

1124 Alder Lane

Sumas, WA 98295

1125 Alder Lane

Sumas, WA 98295

1126 Alder Lane

Sumas, WA 98295

1127 Alder Lane

Sumas, WA 98295

1128 Alder Lane

Sumas, WA 98295

1129 Alder Lane

Sumas, WA 98295

1130 Alder Lane

Sumas, WA 98295

1131 Alder Lane

Sumas, WA 98295

1132 Alder Lane

Sumas, WA 98295

1132 Cherry Street

Sumas, WA 98295

1133 Alder Lane

Sumas, WA 98295

1134 Alder Lane

Sumas, WA 98295

1135 Alder Lane

Sumas, WA 98295

1136 Alder Lane

Sumas, WA 98295

1137 Alder Lane

Sumas, WA 98295

1138 Alder Lane

Sumas, WA 98295

1139 Alder Lane

Sumas, WA 98295

114 2nd Street

Sumas, WA 98295

114 Cornerstone Drive

Sumas, WA 98295

114 Roosevelt Court

Sumas, WA 98295

1140 Alder Lane

Sumas, WA 98295

1141 Alder Lane

Sumas, WA 98295

1142 Alder Lane

Sumas, WA 98295

1143 Alder Lane

Sumas, WA 98295

1143 Cherry Street

Sumas, WA 98295

1144 Alder Lane

Sumas, WA 98295

1145 Alder Lane

Sumas, WA 98295

1146 Alder Lane

Sumas, WA 98295

1147 Alder Lane

Sumas, WA 98295

1148 Alder Lane

Sumas, WA 98295

1149 Alder Lane

Sumas, WA 98295

115 1st Street

Sumas, WA 98295

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