MICROPOLITAN AREA
Seneca Micro
Seneca, SC · 1 counties · 83,775 residents (2025 est.) · 627 sq mi
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The short version
Seneca is home to 80,469 people. The median age is 47.3, about 8 years above the US median. Owners hold 76% of the housing stock. 4% of residents were born outside the United States. The typical home is worth $237,100, having roughly tripled since 2000. The population is up 22% since 2000.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 47.3
US median: 38.9
Less educated
29% hold a bachelor's degree
US average: 36%
Less affordable
home values up 63%, inflation adjusted
US median home: $376,019
Section 01
Population & growth
80,469
+22%since 2000
from 66,215 in 2000
83,775 in 2025 (Census Bureau estimate)
1990 – 2025
Land area
627 sq mi
Population, 1990 – 2024
202480K
Age distribution, 2024
Under 54.4%(3,562)
5 to 95%(4,020)
10 to 145.9%(4,755)
15 to 196%(4,859)
20 to 245.1%(4,115)
25 to 3411%(8,858)
35 to 4410.3%(8,323)
45 to 5411.9%(9,598)
55 to 6415.4%(12,364)
65 to 7415.1%(12,168)
75 to 847.1%(5,703)
85 and over2.7%(2,144)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$62,388
−7%inflation adjusted, since 2000
from $36,666 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
42.7%
+19.9 ptssince 2009
from 22.8% in 2009
US average: 53.3%
Workforce by industry, 2024
Retail trade16.9%
Information9.8%
Wholesale trade9.3%
Finance & insurance6%
Other services3.7%
Education & health services3.6%
Public administration2.5%
Professional, scientific, technical2.3%
Agriculture, forestry, fishing2.1%
Construction1.8%
Arts, entertainment, food1.2%
Transportation & warehousing1%
Manufacturing0.3%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$237,100
+63%inflation adjusted, since 2000
from $79,700 in 2000
US average: $376,019
1990 – 2024
3.8
+29%since 2009
from 2.9 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
60
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity
2000
White, non-Hispanic88%(58,259)
Black8.4%(5,533)
Hispanic / Latino2.4%(1,562)
Asian0.4%(232)
Other0%
2024
White, non-Hispanic83.1%(66,876)
Black5.2%(4,159)
Hispanic / Latino6.2%(5,022)
Asian0.7%(575)
Other4.8%(3,837)
38
+27%since 2009
from 30 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
33
−9%since 2020
from 36 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Mexican3.9%(3,125)
Central American0.9%(727)
South American0.6%(491)
Honduran0.6%(462)
Puerto Rican0.4%(352)
Bolivian0.3%(238)
Ecuadorian0.2%(174)
Dominican0.2%(135)
Panamanian0.1%(112)
Cuban0.1%(107)
Guatemalan0.1%(75)
Salvadoran0.1%(48)
+ 6 more hispanic origin groups with data
Asian origin
Burmese0.2%(186)
Asian Indian0.2%(125)
Filipino0.1%(96)
Chinese0.1%(57)
Vietnamese0%(37)
Uzbek0%(28)
Indonesian0%(26)
Korean0%(17)
Japanese0%(3)
Pacific Islander origin
Chamorro0%(27)
Ancestry
English17%(13,667)
Irish13.9%(11,201)
German12%(9,686)
American9.1%(7,357)
Scottish3.6%(2,891)
Italian2.8%(2,266)
Scotch-Irish2%(1,629)
Polish1.9%(1,489)
French1.6%(1,307)
Dutch1.1%(876)
Greek0.8%(654)
Welsh0.5%(411)
+ 33 more ancestry groups with data
British0.5%(405)
Norwegian0.5%(402)
Russian0.5%(390)
Subsaharan African0.5%(388)
Swedish0.4%(357)
French Canadian0.4%(333)
Romanian0.3%(257)
Portuguese0.2%(193)
Lithuanian0.2%(165)
Ukrainian0.2%(160)
Czech0.2%(142)
Swiss0.2%(133)
Hungarian0.1%(114)
Austrian0.1%(111)
Canadian0.1%(108)
Arab0.1%(77)
Danish0.1%(76)
Slovak0.1%(67)
Belgian0.1%(52)
Finnish0.1%(48)
Nigerian0.1%(44)
West Indian0%(38)
Jamaican0%(38)
Slovene0%(33)
Ghanaian0%(28)
Brazilian0%(19)
Bulgarian0%(18)
Iranian0%(15)
Egyptian0%(14)
Croatian0%(13)
Lebanese0%(12)
Australian0%(9)
Serbian0%(9)
Section 05
Education
High school or higher
87.4%
+13.5 ptssince 2000
from 73.9% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
65.1%
−1.8 ptssince 2020
from 66.9% in 2020
US average: 74.6%
Section 08
People & community
Computer in household
92.7%
+4.9 ptssince 2020
from 87.8% in 2020
US average: 95.5%
Marital status
Men 15+
Never married27.3%(9,128)
Married60.3%(20,129)
Widowed2.7%(911)
Divorced9.7%(3,241)
Women 15+
Never married22.9%(7,961)
Married57.1%(19,839)
Widowed9%(3,109)
Divorced11%(3,814)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage
Direct-purchase
18.5%
+0.8 ptssince 2020
from 17.7% in 2020
US average: 13.8%
VA health care
2.4%
−0.3 ptssince 2020
from 2.7% in 2020
US average: 2.2%
Any private
61.9%
−2.0 ptssince 2020
from 63.9% in 2020
US average: 67.1%
Any public
46.2%
+1.5 ptssince 2020
from 44.7% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)20.9%(1,094)
Gulf War (1990s)16.4%(858)
Vietnam era38.7%(2,031)
Korean War5.1%(270)
World War II0.4%(19)
Share of the 5,245 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked
How many people live in Seneca, SC?
Seneca, SC has about 80,469 residents according to the 2024 American Community Survey.
What is the median household income in Seneca, SC?
The typical household in Seneca, SC earns about $62,388 a year. Half of households make more than that, and half make less.
Is Seneca, SC expensive?
In Seneca, SC, the median home is worth about $237,100, and the typical rent is about $881 a month.
How educated are people in Seneca, SC?
About 28.7% of adults age 25 and over in Seneca, SC hold a bachelor's degree or higher.
What is the poverty rate in Seneca, SC?
About 17.6% of people in Seneca, SC live below the federal poverty line.
Has Seneca, SC grown since 1990?
Yes, Seneca, SC has grown since 1990. The population has added about 22,975 residents, a change of about 40 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · METRO ROLLUP OF COMPONENT COUNTIES · UPDATED 2024