Residential delivery area · Washington
ZIP Code 98651: Underwood, WA
ZIP code 98651 uses the postal name Underwood, Washington and lies entirely in Skamania County (Census 2020 ZIP-county file). About 910 people live there (Census Bureau, ACS 2020-2024). Median household income is $90,000 (Census Bureau, ACS 2020-2024). Its land lies outside any incorporated or census-designated place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Underwood · its only residential ZIP
- County
- Skamania County
- Metro area
- Portland-Vancouver-Hillsboro, OR-WA
- House district
- WA-3 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 13.3 sq mi · 69 people per sq mi
Where is ZIP code 98651?
98651 centers on 45.740°, -121.584° and covers 13.3 square miles of land plus 2.7 of water. It borders 5 ZIP codes: 98605, 98672, 97031, 97014, 98648.
The map draws ZIP code areas only. For the streets inside 98651, 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 98651 compare with the rest of Skamania County?
| Measure | 98651 | In Skamania County | In WA |
|---|---|---|---|
| People (ACS 2020-2024) | 910 | 7th of 8 | 434th of 605 |
| Median household income | $90k | not ranked | not ranked |
| Median home value | $731k | not ranked | not ranked |
98651's income and home value are not ranked: it has fewer than 1,000 residents (910). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 48% of 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 98651?
The 2020 Census counted 872 people in 98651; the ACS, which samples households over 2020-2024, estimates 910. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 910±207 (90% margin)
- 2020 Census count
- 872
- Households
- 422
- Median age
- 58.3
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 98651?
Of the 910 people the ACS estimates in 98651, 11.6% are under 18 and 37.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.3%).
- Under 1811.6%
- 18 to 6450.7%
- 65 and older37.7%
- White, not Hispanic91.3%
- Hispanic or Latino7.4%
- Other or two or more1.3%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
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 98651 earn?
Median household income is $90,000 (ACS 2020-2024).
- Median household income
- $90,000±$33,065
- Income per person
- $67,750
- Below the poverty line
- 3.7%
- Unemployed (of the labor force)
- 3.0%
- Adults 25+ with a bachelor's degree
- 36.9%
- Adjusted gross income per tax return, 2022
- $207,896450 returns; wages 30% 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 98651?
FHFA's house price index for 98651, built from repeat sales and appraisals of the same homes, rose 86% from 2015 to 2025 and rose 42% from 2020 to 2025.
- Median home value (owners' estimate)
- $730,700
- Median gross rent
- $1,035
- Homes owned by their occupants
- 87.4%
- Housing units
- 451
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 98651?
20 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction5
- Manufacturing5
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 98651?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98605 | Bingen | 1,117 | $73k | 4.7 mi |
| 98672 | White Salmon | 7,390 | $98k | 7.7 mi |
| 97031 | Hood River, OR | 19,138 | $92k | 9.0 mi |
| 97014 | Cascade Locks, OR | 1,459 | $75k | 12.0 mi |
| 98648 | Stevenson | 3,477 | $97k | 17.6 mi |
| 98623 | Husum | 55 | – | 6.0 mi (near) |
| 97040 | Mosier, OR | 1,842 | $73k | 12.7 mi (near) |
| 98650 | Trout Lake | 1,188 | $77k | 14.5 mi (near) |
| 98602 | Appleton | 320 | $54k | 17.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.