What is the population of Seneca city?

Seneca city has 8,910 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #68 of 475 in South Carolina.

What is the median household income in Seneca city?

Median household income in Seneca city is $52,207 a year, 33.5% below the national figure of $78,538.

How much does it cost to rent or buy in Seneca city?

Median gross rent is $806 a month and the median home value is $223,100, so rent absorbs about 18.5% of median household income.

Is Seneca city affordable compared with the rest of the US?

Homes cost about 4.3× the local median income here versus roughly 3.9× nationally, so Seneca city is less affordable to buy in than the typical US market, and rent takes 18.5% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

South Carolina · Census place 65095

Seneca, SC population, income and ZIP codes

Quick answer

The population of the city of Seneca, South Carolina (Seneca, SC — Census place “Seneca city”) is 8,910 residents, ranking #68 of 475 places in South Carolina. Median household income is $52,207, the median home is worth $223,100 and median gross rent runs $806 a month. Looking for the Seneca South Carolina ZIP code list? 1 ZIP codes serve Seneca, SC: 29678.

Population: 8,910Seneca city residents
Median household income: $52,207Past 12 months, inflation adjusted
Median home value: $223,100Owner-occupied units
Median gross rent: $806Rent plus utilities, monthly
Median age: 39.9 yrsAll residents
Homeownership rate: 52.7%Owner-occupied households

Seneca ZIP codes (South Carolina)

Census ZCTAs whose delivery area overlaps Seneca.

The Seneca SC ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

29678

What the numbers mean in Seneca city

Housing cost measured against local earnings.

A household earning the Seneca city median would spend about 18.5% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 4.3× the median household income; nationally that ratio sits near 4.5×. Poverty affects 18.8% of residents and 52.7% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Seneca city, SC in context

How this area compares with national benchmarks.

Seneca city is a mid-size town in South Carolina, with 8,910 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #68 of 475 ranked by population — larger than 85% of them. The median age here is 39.9 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Seneca city earn a median of $52,207 a year, 33.5% below the national figure of $78,538 and within a couple of points of the $53,071 median for the 263 South Carolina cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 18.8% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Seneca city is valued at $223,100, 26.5% below the national figure and 26% above the $177,100 peer median, while median gross rent runs $806 a month, 42.7% below the national figure, or roughly $9,672 across a full year. A household on the local median income would put about 18.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.3×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 52.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in South Carolina.

More South Carolina coverage.

Frequently asked questions

Common questions about this area.

What is the population of Seneca city?: Seneca city has 8,910 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #68 of 475 in South Carolina.
What is the median household income in Seneca city?: Median household income in Seneca city is $52,207 a year, 33.5% below the national figure of $78,538.
How much does it cost to rent or buy in Seneca city?: Median gross rent is $806 a month and the median home value is $223,100, so rent absorbs about 18.5% of median household income.
Is Seneca city affordable compared with the rest of the US?: Homes cost about 4.3× the local median income here versus roughly 3.9× nationally, so Seneca city is less affordable to buy in than the typical US market, and rent takes 18.5% of median income against the 30% cost-burden line.
How current is this Seneca city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.