Residential delivery area · Washington
ZIP Code 98237: Concrete, WA
ZIP code 98237 uses the postal name Concrete, Washington and lies mostly in Skagit County (85% of its land) with the rest in Whatcom County (Census 2020 ZIP-county file). About 5,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $61,711 (Census Bureau, ACS 2020-2024). By Census place, under 1% of its land lies in Concrete; more than 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Concrete · its only residential ZIP
- County
- Skagit County (85%); Whatcom County (15%)
- Census places
- Concrete
- Metro area
- Mount Vernon-Anacortes, WA
- House district
- WA-2 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 417.4 sq mi · 12 people per sq mi
Where is ZIP code 98237?
98237 centers on 48.534°, -121.711° and covers 417.4 square miles of land plus 13.9 of water. It borders 5 ZIP codes: 98244, 98284, 98267, 98283, 98241.
The map draws ZIP code areas only. For the streets inside 98237, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 98237 compare with the rest of Skagit County?
| Measure | 98237 | In Skagit County | In WA |
|---|---|---|---|
| People (ACS 2020-2024) | 4,956 | 8th of 17 | 293rd of 605 |
| Median household income | $62k | 9th of 9 | 335th of 363 |
| Median home value | $378k | 11th of 11 | 304th of 392 |
Its median household income is higher than in 32% of U.S. residential ZIP codes, and it is denser than 19% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 98237?
The 2020 Census counted 4,304 people in 98237; the ACS, which samples households over 2020-2024, estimates 4,956. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 4,956±603 (90% margin)
- 2020 Census count
- 4,304
- Households
- 1,855
- Median age
- 39.9
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 98237?
Of the 4,956 people the ACS estimates in 98237, 25.7% are under 18 and 21.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (77.9%), then Hispanic or Latino (11.6%).
- Under 1825.7%
- 18 to 6452.8%
- 65 and older21.5%
- White, not Hispanic77.9%
- Hispanic or Latino11.6%
- Other or two or more9.9%
- Asian, not Hispanic0.5%
- Black, not Hispanic0.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 98237 earn?
Median household income is $61,711 (ACS 2020-2024), the 9th highest of the 9 ranked ZIP codes in Skagit County.
- Median household income
- $61,711±$7,208
- Income per person
- $32,008
- Below the poverty line
- 16.9%
- Unemployed (of the labor force)
- 10.0%
- Adults 25+ with a bachelor's degree
- 12.3%
- Adjusted gross income per tax return, 2022
- $65,4691,810 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 98237?
FHFA's house price index for 98237, built from repeat sales and appraisals of the same homes, rose 171% from 2015 to 2025 and rose 58% from 2020 to 2025, and moved +5.5% in 2025.
- Median home value (owners' estimate)
- $377,700
- Median gross rent
- $845
- Homes owned by their occupants
- 80.1%
- Housing units
- 2,420
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 98237?
72 business establishments had a location in this ZIP code in 2023, 13 more than in 2018; the most are in accommodation and food services (ZIP Code Business Patterns).
- Accommodation and food services15
- Retail trade10
- Other services (except public administration)8
- Construction7
- Real estate and rental and leasing6
- Professional, scientific, and technical services5
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 98237?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98244 | Deming | 2,994 | $67k | 18.8 mi |
| 98284 | Sedro Woolley | 27,835 | $93k | 19.4 mi |
| 98267 | Marblemount | 314 | – | 22.7 mi |
| 98283 | Rockport | 442 | $72k | 26.2 mi |
| 98241 | Darrington | 2,339 | $73k | 34.7 mi |
| 98255 | Hamilton | 198 | $68k | 12.9 mi (near) |
| 98263 | Lyman | 200 | $134k | 16.3 mi (near) |
| 98274 | Mount Vernon | 18,860 | $96k | 23.7 mi (near) |
| 98235 | Clearlake | 531 | $63k | 24.3 mi (near) |
| 98220 | Acme | 541 | $92k | 24.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.