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MICROPOLITAN AREA · 2020 ACS

Seneca Micro

Seneca, SC · 1 counties · 78,607 residents · 627 sq mi
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The short version

Seneca is home to 78,607 people. The median age is 47.1, about 8 years above the US median. 75% of homes are owner-occupied. The foreign-born share is 4%. The typical home is worth $164,000, having more than doubled since 2000. The population is up 19% since 2000.

At a glance
Lower income
below the US median
US median: $66,278
Older
median age 47.1
US median: 38.8
Less educated
27% hold a bachelor's degree
US average: 33%
Less affordable
home values up 37%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

78,607
+19%since 2000
from 66,215 in 2000
1990 – 2025
125 / sq mi
+19%since 2000
from 106 / sq mi in 2000
47.1
+19%since 2000
from 39.5 in 2000
US average: 38.8
Land area
627 sq mi
Population, 19902024
55K62K69K76K83K19902000201020202024Seneca
202480K
1990201020202024
Age distribution, 2020
Under 54.5%(3,511)
US avg: 5.6%
5 to 95.4%(4,225)
US avg: 6.1%
10 to 145.7%(4,486)
US avg: 6.5%
15 to 195.7%(4,475)
US avg: 6.6%
20 to 246.2%(4,871)
US avg: 6.7%
25 to 3410.3%(8,085)
US avg: 13.5%
35 to 449.9%(7,807)
US avg: 12.7%
45 to 5412.2%(9,601)
US avg: 12.3%
55 to 6415.6%(12,298)
US avg: 13.1%
65 to 7414.7%(11,532)
US avg: 10%
75 to 847.5%(5,931)
US avg: 4.9%
85 and over2.3%(1,785)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$49,691
−10%inflation adjusted, since 2000
from $36,666 in 2000
US average: $66,278
1990 – 2024
$31,297
+65%since 2000
from $18,965 in 2000
US average: $35,364
Households earning $100K+
31.5%
+8.7 ptssince 2009
from 22.8% in 2009
US average: 43.9%
15.3%
+4.5 ptssince 2000
from 10.8% in 2000
US average: 12.8%
Workforce by industry, 2020
Retail trade18.8%
US avg: 10%
Information10.2%
US avg: 11.1%
Wholesale trade8.1%
US avg: 6.7%
Finance & insurance5.7%
US avg: 5.5%
Other services3.8%
US avg: 6.6%
Education & health services3.3%
US avg: 0.8%
Professional, scientific, technical2.4%
US avg: 4.7%
Public administration2.2%
US avg: 4.7%
Agriculture, forestry, fishing1.4%
US avg: 1.7%
Construction1.4%
US avg: 1.2%
Transportation & warehousing1.4%
US avg: 2.5%
Arts, entertainment, food0.9%
US avg: 2%
Manufacturing0%
US avg: 0.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$164,000
+37%inflation adjusted, since 2000
from $79,700 in 2000
US average: $265,253
1990 – 2024
$761
+19%inflation adjusted, since 2000
from $424 in 2000
US average: $1,124
75.0%
−3.4 ptssince 2000
from 78.4% in 2000
25.0% rent
2.39 people
+1%since 2009
from 2.36 people in 2009
US average: 2.61
3.3
+12%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.
Section 04

Race & ethnicity

2000
White, non-Hispanic88%(58,259)
Black8.4%(5,533)
Hispanic / Latino2.4%(1,562)
Asian0.4%(232)
Other0%
2020
White, non-Hispanic82.3%(64,696)
Black6.5%(5,119)
Hispanic / Latino5.6%(4,384)
Asian0.8%(591)
Other2.2%(1,758)
36
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%(3,030)
Puerto Rican0.5%(358)
Honduran0.4%(282)
Bolivian0.2%(181)
Cuban0.1%(101)
Guatemalan0.1%(81)
Spaniard0.1%(60)
Chilean0%(38)
Colombian0%(33)
+ 2 more hispanic origin groups with data
Asian origin
Asian Indian0.3%(206)
Filipino0.2%(130)
Japanese0.1%(111)
Chinese0.1%(62)
Vietnamese0.1%(46)
Korean0%(10)
Pacific Islander origin
Chamorro0%(12)
Ancestry
Irish13.5%(10,586)
English13.1%(10,250)
German11.8%(9,238)
American11.1%(8,655)
Scottish2.7%(2,132)
Scotch-Irish2.6%(2,052)
Italian2.4%(1,848)
French2%(1,587)
Polish1.3%(1,031)
Greek0.8%(603)
British0.7%(541)
Dutch0.7%(511)
+ 29 more ancestry groups with data
Welsh0.6%(440)
Norwegian0.5%(361)
Swedish0.4%(350)
Syrian0.4%(320)
Russian0.2%(188)
Portuguese0.2%(181)
Romanian0.2%(177)
Danish0.2%(173)
Slovak0.2%(172)
Hungarian0.2%(163)
Swiss0.2%(148)
Lithuanian0.1%(100)
Belgian0.1%(73)
Austrian0.1%(67)
Canadian0.1%(58)
Czech0.1%(54)
Lebanese0.1%(42)
Ukrainian0%(37)
Croatian0%(28)
Finnish0%(26)
Latvian0%(24)
Arab0%(17)
Nigerian0%(13)
Turkish0%(9)
Serbian0%(4)
Section 05

Education

27.4%
+9.2 ptssince 2000
from 18.2% in 2000
US average: 32.9%
High school or higher
85.7%
+11.9 ptssince 2000
from 73.9% in 2000
US average: 88.5%
10.9%
+3.8 ptssince 2000
from 7.1% in 2000
US average: 12.7%
Section 06

Commute & transportation

25.2 min
+66%since 2000
from 15.2 min in 2000
US average: 26.9
81.6%
Unchangedsince 2009
from 81.5% in 2009
US average: 75.1%
6.5%
+1.4 ptssince 2009
from 5.1% in 2009
US average: 8.4%
Section 07

Work & employment

6.1%
−5.5 ptssince 2011
from 11.5% in 2011
US average: 5.4%
54.5%
−1.3 ptssince 2011
from 55.8% in 2011
US average: 63.4%
Women 20-64 in the labor force
66.9%
US average: 73.3%
33.4%
+3.2 ptssince 2009
from 30.1% in 2009
US average: 39.3%
Section 08

People & community

49.3%
+0.2 ptssince 2009
from 49.1% in 2009
50.7%
−0.2 ptssince 2009
from 50.9% in 2009
3.9%
+0.7 ptssince 2009
from 3.3% in 2009
US average: 13.5%
10.9%
−5.8 ptssince 2013
from 16.7% in 2013
US average: 8.8%
Computer in household
87.8%
US average: 91.9%
86.5%
US average: 86.2%
Marital status (2024)
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

10.9%
−5.8 ptssince 2013
from 16.7% in 2013
US average: 8.8%
47.9%
US average: 55.4%
Direct-purchase
17.7%
US average: 13.7%
27.3%
US average: 17.6%
20.9%
US average: 20.0%
VA health care
2.7%
US average: 2.3%
Any private
63.9%
US average: 68.1%
Any public
44.7%
US average: 35.2%

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, 2020
Gulf War (2001 or later)15.7%(973)
US avg: 20.6%
Gulf War (1990s)15.7%(973)
US avg: 21.4%
Vietnam era45.9%(2,850)
US avg: 35.2%
Korean War7%(433)
US avg: 7.6%
World War II0.7%(41)
US avg: 2.9%

Share of the 6,215 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 78,607 residents according to the 2020 American Community Survey.

What is the median household income in Seneca, SC?

The typical household in Seneca, SC earns about $49,691 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 $164,000, and the typical rent is about $761 a month.

How educated are people in Seneca, SC?

About 27.4% 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 15.3% 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 21,113 residents, a change of about 37 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · METRO ROLLUP OF COMPONENT COUNTIES · UPDATED 2024

How we source and harmonize this data →