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Seneca, SC
Key Indicators
A quick look at key numbers
Population
8,993
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
39.6
years ∙ half population younger than 39.6, half older
Diversity Index
43.5%
chance two random people differ in race and ethnicity
Nativity
2.6%
foreign-born population
Geographic Context
Location, size, and surroundings
About
Seneca is a city within Oconee County, South Carolina, United States.
Co-ordinates
DEC34.681059° N, 82.965604° W
DMS34° 40′ 51.81″ N, 82° 57′ 56.17″ W
Population Density & area
1,074/sq mi
(415/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
44.9%
male
Male
44.9%
Female
55.1%
males per 100 females
Seneca
81.5
Oconee County
97.9
South Carolina
94.8
Nativity
2.6%
foreign-born population
% Foreign-born
Seneca
2.6%
Oconee County
4.2%
South Carolina
5.8%
Age Distribution
How the population is spread across age groups
Median Age
39.6
years ∙ half population younger than 39.6, half older
Dependency ratio
63.7
dependents per 100 working-age adults
Seneca
63.7
Oconee County
78.5
South Carolina
67.5
AGE DISTRIBUTION
Distribution of age group
Median age
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 18.5% | 19.1% | 21.4% |
| Working age (18-64) | 61.1% | 56% | 59.7% |
| Senior (65+) | 20.4% | 24.9% | 18.9% |
| Dependency ratio | |||
| Total dependency ratio | 63.7 | 78.5 | 67.5 |
| Child dependency ratio | 30.3 | 34.1 | 35.9 |
| Old-age dependency ratio | 33.4 | 44.4 | 31.6 |
Racial & Ethnic Composition
Racial and ethnic makeup and how it compares
Race & Ethnicity
Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.
Diversity Index
43.5%
chance two random people differ in race and ethnicity
Seneca
43.5%
Oconee County
30.1%
South Carolina
54.9%
Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.
RACIAL & ETHNIC COMPOSITION
Race & Ethnicity
Percentage of Seneca population
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Hispanic or Latino | 6.4% | 6.2% | 7.4% |
| Mexican | 2.7% | 3.9% | 3.4% |
| Puerto Rican | 1.5% | 0.4% | 1% |
| Cuban | 0% | 0.1% | 0.3% |
| Other Hispanic / Latino | 2.2% | 1.8% | 2.7% |
| Not Hispanic or Latino | 93.6% | 93.8% | 92.6% |
| One race | 91.8% | 89.7% | 88.9% |
| White | 72.8% | 83.1% | 61.9% |
| Black or African American | 17.4% | 5.2% | 24.6% |
| American Indian and Alaska Native | 0.8% | 0.4% | 0.2% |
| Asian | 0.8% | 0.7% | 1.7% |
| Native Hawaiian and Other Pacific Islander | 0% | 0% | 0% |
| Some Other Race | 0% | 0.2% | 0.5% |
| Two or more races (Multiracial) | 1.8% | 4.1% | 3.7% |
Household & Families Composition
Household size, type, and family structure
Household structure
62.4%
family
Family
62.4%
Non family
37.6%
% family households
Seneca
62.4%
Oconee County
69.7%
South Carolina
65%
Average household size
2.18
persons per household
Household & Family COMPOSITION
Households
Percentage of Seneca population
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Total households | 4,082 | 34,515 | 2,117,989 |
| Average houshold size | 2.18 | 2.31 | 2.44 |
| Family households | 2,546 | 24,052 | 1,377,369 |
| Average family size | 2.73 | 2.73 | 3.01 |
| Married couple family | 1,563 | 18,484 | 998,170 |
| Other families | 983 | 5,568 | 379,199 |
| Male householder | 207 | 1,584 | 95,077 |
| Female householder | 776 | 3,984 | 284,122 |
| Non-family households | 1,536 | 10,463 | 740,620 |
| One-person households | 1,459 | 8,816 | 618,603 |
| Male householder | 673 | 3,969 | 273,409 |
| Senior (65+) living alone | 143 | 1,326 | 86,486 |
| Female householder | 786 | 4,847 | 345,194 |
| Senior (65+) living alone | 380 | 2,680 | 172,484 |
| Other living arrangements | 77 | 1,647 | 122,017 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
4,648
housing units
Seneca
4,648
Oconee County
42,100
South Carolina
2,443,039
Occupancy status
87.8%
occupied
Occupied
87.8%
Vacant
12.2%
vacancy rate
Seneca
12.2%
Oconee County
18%
South Carolina
13.3%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
63.3%
Single family houses
Median Year Built
1984
Half of houses were built before 1984, and half after.
Note: Median year built reflects occupied units only; distribution includes all units.
Housing Characteristics
Units, rooms & bedrooms
Physical characteristics of housing units
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 5.3 | 5.8 | 5.7 |
| 1–3 rooms | 8.7% | 7.9% | 9.1% |
| 4–6 rooms | 63.8% | 55.5% | 55.3% |
| 7+ rooms | 27.5% | 36.7% | 35.5% |
| Bedrooms | |||
| No bedroom / studio | 0.3% | 1.3% | 1.5% |
| 1 bedroom | 11.7% | 4.7% | 5.7% |
| 2 bedrooms | 29.5% | 24.8% | 22.5% |
| 3 bedrooms | 42.7% | 47.6% | 47.5% |
| 4+ bedrooms | 15.9% | 21.7% | 22.8% |
| At a glance | |||
| Median year built | 1984 | 1990 | 1993 |
| Total housing units | 4,648 | 42,100 | 2,443,039 |
Occupancy Profile
Who is inside and how they use it
Homeownership
51.4%
owners
Renter-occupied
48.6%
Owner-occupied
51.4%
homeownership rate
Seneca
51.4%
Oconee County
76.2%
South Carolina
71.9%
Average household size
2.38
Owner-occupied
1.96
Renter-occupied
owner-occupied average size
Seneca
2.38
Oconee County
2.35
South Carolina
2.49
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Total occupied units | 4,082 | 34,515 | 2,117,989 |
| Year moved in | |||
| 2020 or later | 28.8% | 22.9% | 25.6% |
| 2010 to 2019 | 43.9% | 38.2% | 39.4% |
| 2000 to 2009 | 15.2% | 16.9% | 16% |
| 1999 or earlier | 12% | 22% | 19% |
| Occupants per room | |||
| 1.00 or fewer | 99.7% | 98.5% | 98% |
| 1.01 to 1.50 | 0.3% | 1% | 1.4% |
| 1.51 or more | 0% | 0.5% | 0.6% |
| Vehicles availability | |||
| No vehicles | 7.5% | 5.2% | 5.7% |
| 1 vehicle | 41.4% | 26.7% | 32.2% |
| 2 vehicles | 31% | 39.6% | 38.5% |
| 3 or more vehicles | 20.2% | 28.6% | 23.6% |
| House heating fuel used | |||
| Gas | 31.8% | 27% | 27.1% |
| Electricity | 67.7% | 69.2% | 70.8% |
| Solar | 0% | 0.1% | 0.2% |
| Fuel oil, kerosene etc | 0% | 0.5% | 0.5% |
| All other fuels | 0.3% | 2.6% | 0.6% |
| No fuel used | 0.2% | 0.7% | 0.7% |
| Selected characteristics | |||
| Lacking complete plumbing | 0% | 0.4% | 0.3% |
| Lacking complete kitchen | 1.6% | 0.7% | 0.6% |
| No telephone service available | 0% | 0.8% | 0.8% |
Housing Value
What owner-occupied units are worth
Median home value
$240,000
owner-occupied units
Housing Cost Burden
25.3%
of homeowners with a mortgage are cost-burdened
Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.
Financial characteristics
Property value and housing costs
Tenure, crowding, and utilities
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Property value | |||
| Median Value | $240,000 | $237,100 | $259,000 |
| Under $100,000 | 7.4% | 19.7% | 16.8% |
| $100,000 - $200,000 | 19% | 21.2% | 19.5% |
| $200,000 - $300,000 | 39.3% | 19.9% | 21.8% |
| $300,000 - $500,000 | 23.4% | 18% | 25.5% |
| $500,000 - $1,000,000 | 8.5% | 13.2% | 12.7% |
| $1,000,000 and more | 2.3% | 8% | 3.7% |
| Owner-occupied households | |||
| With a mortgage | 59.6% | 46.7% | 57.1% |
| Without a mortgage | 40.4% | 53.3% | 42.9% |
| Median monthly owner costs | |||
| With a mortgage | $1,313 | $1,367 | $1,529 |
| Without a mortgage | $390 | $418 | $448 |
| Gross rent | |||
| Median rent | $807 | $881 | $1,180 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
29.1%
of adults 25+ with a bachelor's degree or higher
Seneca
29.1%
Oconee County
28.7%
South Carolina
32.1%
Adults without a high school diploma
13.2%
of adults (25+) without a high school diploma
Seneca
13.2%
Oconee County
12.6%
South Carolina
9.9%
School Enrollment
Who is enrolled in school and at what level
School enrollment
1,542
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
18.4%
of 18-24-year-olds in college or graduate school
Enrollment & school type
Enrollment levels, college-going rate, and public vs private school split
Population 3+ currently enrolled in a school
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Total enrolled (age 3+) | 1,542 | 15,776 | 1,202,992 |
| Nursery / preschool | 4.3% | 5.7% | 5.2% |
| K–12 | 64% | 74.3% | 69.7% |
| Kindergarten | 7.6% | 5.1% | 5.5% |
| Elementary: Grades 1–4 | 19.3% | 21.2% | 20.6% |
| Elementary: Grades 5–8 | 25% | 24.7% | 21.4% |
| High School: Grades 9–12 | 12.2% | 23.2% | 22.2% |
| College or graduate school | 31.6% | 20% | 25.1% |
| College, undergraduate | 27.8% | 16.6% | 20% |
| Graduate, professional school | 3.8% | 3.4% | 5% |
| College-going rate · 18-24 yr olds | 18.4% | 26.9% | 37.5% |
| School type | |||
| Public school | 76.9% | 82.3% | 82.7% |
| Private school | 23.1% | 17.7% | 17.3% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
6,735
population 25 years and over
Attainment by gender
Male vs Female
Adults (25+) · Share within each education level
Educational Attainment Overview
Distribution and key education attainment rates for adults (25+)
Highest credential completed · adults 25+
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Population (25+) | 6,735 | 59,158 | 3,677,078 |
| Less than 9th grade | 2.9% | 3.8% | 3.1% |
| 9th–12th, no diploma | 10.3% | 8.8% | 6.8% |
| High school diploma or GED | 25% | 29.6% | 28.2% |
| Some college, no degree | 21.3% | 17.8% | 19.8% |
| Associate's degree | 11.4% | 11.3% | 10% |
| Bachelor's degree or higher | 29.1% | 28.7% | 32.1% |
| Bachelor's degree | 19.1% | 17.3% | 19.8% |
| Graduate or professional | 10% | 11.3% | 12.3% |
| High School or higher | 86.9% | 87.4% | 90.1% |
Earnings by education level
percentage as applicable
Median Earnings
$33,484
Median earnings for adults 25+, by level
Poverty Rate
4.6%
for ages 25+, with bachelors degree or higher
Outcomes by Education Level
Earnings and poverty rates across education levels (25+)
Adults 25+
| Seneca | Oconee County | South Carolina | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $33,484 | $45,819 | $47,658 |
| Less than high school graduate | $19,624 | $29,335 | $30,223 |
| High school graduate (includes equivalency) | $40,341 | $37,505 | $37,196 |
| Some college or associate's degree | $30,707 | $39,151 | $44,160 |
| Bachelor's degree | $48,049 | $59,643 | $61,860 |
| Graduate or professional degree | $67,452 | $79,069 | $73,671 |
| Poverty rates | |||
| Less than high school graduate | 29% | 34% | 28.4% |
| High school graduate (includes equivalency) | 21.4% | 17% | 15.6% |
| Some college or associate's degree | 12.9% | 9.5% | 10.2% |
| Bachelor's degree or higher | 4.6% | 4.6% | 4.7% |
About Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
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