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West Virginia ZIP Codes
Mason County
Southside, WV
25187
25187 ZIP Code — Southside, WV
Mason County, West Virginia
ZIP code 25187 is located in
Southside ,
West Virginia ,
within Mason County .
It covers approximately 39.97 square miles and serves a population of
685 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 304 .
About ZIP code 25187
The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $213,700. Owner-occupancy is high at 94%, well above the national average.
Median household income is $43,657. 41% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is sales and office, with retail trade as the leading industry. The average commute of 30 minutes is near the national average.
College attainment at 17% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (24%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 23% of civilians, above the national average of 7%; and disability rates above the national average at 31%.
Overall, ZIP code 25187 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
25187 ZIP code map
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Cities in ZIP code 25187
Below are the cities the US Postal Service accepts for ZIP code 25187. Using any city not on this list may result in mail delivery delays.
Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
685
Population density
17 / sq mi
State FIPS
54
County FIPS
053
Geography
Land area
39.97 sq mi
Water area
0.87 sq mi
Latitude
38.7157
Longitude
-82.0136
Timezone
Eastern (ET)
Area code
304
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
55.0%
50.4%
51.6%
$50k – $100k
19.5%
32.4%
29.4%
$100k – $200k
25.6%
15.8%
15.8%
Over $200k
0.0%
1.5%
3.1%
Demographics & statistics
$43,657
Median household income
$213,700
Median home value
16.5%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 152 22.2%
18 and over 533 77.8%
65 and over 211 30.8%
Median age 44.3 years
Race & ethnicity
Household income
Income range
This ZIP
County avg
State avg
Under $50k
55.0%
50.4%
51.6%
$50k – $100k
19.5%
32.4%
29.4%
$100k – $200k
25.6%
15.8%
15.8%
Over $200k
0.0%
1.5%
3.1%
Range % of households
$15k–$25k 35.7%
$35k–$50k 27.4%
$50k–$75k 17.9%
$75k–$100k 5.7%
$100k–$150k 1.5%
$150k–$200k 11.9%
Median income $43,657
Housing
Housing overview
Metric Value
Median home value $213,700
Median rent / month $0
Owner occupied 94.3%
Renter occupied 5.7%
Vacant 12.5%
Single-family detached 86.2%
Large apartment buildings 0.0%
Mobile homes 13.8%
Median rooms 5.8
Avg household size (owned) 1.99
Year built
Era %
2020 or later 0.0%
2010–2019 2.1%
2000–2009 6.0%
1990–1999 3.6%
1980–1989 22.9%
1970–1979 8.9%
1960–1969 0.0%
1950–1959 22.4%
1940–1949 0.0%
1939 or earlier 34.1%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 10.9%
2 bedrooms 18.8%
3 bedrooms 53.6%
4 bedrooms 16.7%
5+ bedrooms 0.0%
Vehicles per household
Vehicles % of households
No vehicle 15.2%
1 vehicle 11.9%
2 vehicles 61.3%
3 or more 11.6%
Heating fuel
Fuel type %
Electricity 61.9%
Propane / LP gas 31.3%
Fuel oil 5.7%
Wood 1.2%
Households & families
Household type Count %
Married-couple family 155 46.1%
Cohabiting couple 0 0.0%
Male householder, no spouse 105 31.3%
Female householder, no spouse 76 22.6%
Households with children under 18 84 25.0%
Households with seniors (65+) 191 56.8%
Average household size 2.04
Marital status
Status Male Female
Never married 7.4% 11.6%
Married 60.7% 59.9%
Separated 0.0% 0.0%
Widowed 0.0% 25.1%
Divorced 31.9% 3.4%
Education
Some college, no degree
24.2%
Graduate / professional
0.0%
Metric %
HS diploma or higher 90.2%
Bachelor's or higher 16.5%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 0 0.0%
Elementary school 0 0.0%
High school 19 76.0%
College / grad school 6 24.0%
Employment
Industry of employment
Public administration
25.2%
Transportation & utilities
9.6%
Finance & real estate
7.0%
Education & healthcare
2.6%
Arts, food & hospitality
2.2%
Agriculture & mining
1.5%
Occupation
Category %
Management, business & arts 31.9%
Service 5.6%
Sales & office 34.1%
Natural resources & construction 17.4%
Production & transportation 11.1%
Employment type
Type %
Private sector 67.4%
Government 27.8%
Self-employed 4.8%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 95.2%
Carpool 0.0%
Public transit 0.0%
Walk 0.0%
Work from home 4.8%
Other means 0.0%
Avg commute (minutes) 30.1
Poverty
Married-couple families
12.3%
Female-led households
0.0%
Income support
Source % of households
Social Security 40.8%
Retirement income 41.7%
Supplemental Security 5.7%
Cash public assistance 5.7%
Food stamps / SNAP 5.7%
Health indicators
Condition %
Obesity 42.8%
High blood pressure 44.2%
High cholesterol 39.1%
Diabetes 13.7%
Heart disease 9.2%
Stroke 3.9%
Asthma 11.3%
Arthritis 38.3%
Kidney disease 3.5%
Pulmonary disease 12.1%
Cancer 7.4%
Behavior / access %
Smoking 24.1%
Binge drinking 12.2%
No physical activity 32.0%
Less than 7 hrs sleep 40.8%
Depression 28.0%
Fair or poor health 22.1%
Poor mental health 18.1%
Poor physical health 15.2%
No health insurance 11.3%
Visited doctor (checkup) 81.1%
Visited dentist 54.8%
Cholesterol screening 90.0%
Teeth loss 20.0%
Veterans & disability
Veterans Count %
Civilian veterans 121 22.7%
Disability %
Any disability 31.2%
Under 18 9.2%
18–64 years 8.7%
65 and over 81.5%
Health insurance coverage
Type %
Private insurance 70.8%
Public insurance 45.5%
No insurance 0.0%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 610 89.1%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 685 100.0%
Born in same state 679 99.1%
Born in different state 568 82.9%
Foreign born 6 0.9%
Naturalized citizen 0 0.0%
Not a US citizen 0 0.0%
Ancestry
Ancestry Count %
Arab 118 17.2%
Technology access
Metric % of households
Computer access 49.1%
Internet access 67.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 25187
What city is ZIP code 25187 in?
ZIP code 25187 is primarily assigned to Southside, West Virginia.
What county is ZIP code 25187 in?
ZIP code 25187 falls within Mason County, West Virginia.
Does ZIP code 25187 have an older population?
31% of residents in ZIP code 25187 are 65 or older, above the national average of ~17%.
Is ZIP code 25187 mostly owner-occupied?
94% of occupied units in ZIP code 25187 are owner-occupied, well above the national average.
Does ZIP code 25187 have a large veteran population?
23% of civilians in ZIP code 25187 are veterans, above the national average of ~7%.
Does ZIP code 25187 have a large retiree population?
41% of households in ZIP code 25187 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 25187 in?
ZIP code 25187 observes the EST timezone.
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