Residential delivery area · West Virginia
ZIP Code 26187: Williamstown, WV
ZIP code 26187 uses the postal name Williamstown, West Virginia and lies entirely in Wood County (Census 2020 ZIP-county file). About 6,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $83,226 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Boaz (17%) and Williamstown (7%); 76% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Williamstown · its only residential ZIP
- County
- Wood County
- Census places
- Boaz (17%) census-designated place; Williamstown (7%)
- Metro area
- Parkersburg-Vienna, WV
- House district
- WV-2 119th Congress
- State
- West Virginia
- Time zone
- Eastern
- Land area
- 21.5 sq mi · 281 people per sq mi
Where is ZIP code 26187?
26187 centers on 39.366°, -81.447° and covers 21.5 square miles of land plus 3.0 of water. It borders 5 ZIP codes: 26105, 45750, 26104, 26184, 26170.
The map draws ZIP code areas only. For the streets inside 26187, 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 26187 compare with the rest of Wood County?
| Measure | 26187 | In Wood County | In WV |
|---|---|---|---|
| People (ACS 2020-2024) | 6,060 | 6th of 13 | 78th of 738 |
| Median household income | $83k | 1st of 8 | 21st of 159 |
| Median home value | $198k | 2nd of 9 | 51st of 194 |
Its median household income is higher than in 66% of U.S. residential ZIP codes, and it is denser than 66% 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 26187?
The 2020 Census counted 6,209 people in 26187; the ACS, which samples households over 2020-2024, estimates 6,060. Between the 2010 and 2020 censuses its population grew 3.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 6,060
- 2020 Census count
- 6,209+3.8% since 2010 (5,982)
- Households
- 2,694
- Median age
- 48.1
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 26187?
Of the 6,060 people the ACS estimates in 26187, 17.4% are under 18 and 26.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (96.4%).
- Under 1817.4%
- 18 to 6456.5%
- 65 and older26.1%
- White, not Hispanic96.4%
- Other or two or more2.1%
- Black, not Hispanic0.8%
- Hispanic or Latino0.7%
- 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 26187 earn?
Median household income is $83,226 (ACS 2020-2024), the highest of the 8 ranked ZIP codes in Wood County. It is not measurably different from 2015-2019 ($89,362 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $83,226±$14,520
- Income per person
- $44,497
- Below the poverty line
- 6.8%
- Unemployed (of the labor force)
- 2.4%
- Adults 25+ with a bachelor's degree
- 35.8%
- Adjusted gross income per tax return, 2022
- $91,0822,960 returns; wages 63% 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 26187?
FHFA's house price index for 26187, built from repeat sales and appraisals of the same homes, rose 75% from 2015 to 2025 and rose 46% from 2020 to 2025, and moved +24.4% in 2025.
- Median home value (owners' estimate)
- $198,300
- Median gross rent
- $887
- Homes owned by their occupants
- 85.6%
- Housing units
- 2,991
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 26187?
116 business establishments had a location in this ZIP code in 2023, 9 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade17
- Other services (except public administration)16
- Health care and social assistance15
- Professional, scientific, and technical services10
- Construction9
- Finance and insurance8
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 26187?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 26105 | Vienna | 12,107 | $62k | 4.4 mi |
| 45750 | Marietta, OH | 26,420 | $60k | 4.5 mi |
| 26104 | Parkersburg | 16,805 | $54k | 6.3 mi |
| 26184 | Waverly | 2,352 | $63k | 7.0 mi |
| 26170 | Saint Marys | 5,701 | $68k | 14.4 mi |
| 45729 | Fleming, OH | 2,121 | $82k | 9.2 mi (near) |
| 26134 | Belmont | 902 | $48k | 9.3 mi (near) |
| 45714 | Belpre, OH | 9,503 | $57k | 9.6 mi (near) |
| 26142 | Davisville | 2,262 | $63k | 10.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.