PlainZIP

Seneca, SC · standard

ZIP Code 29678

Oconee County, South Carolina - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

21,676
106/sq mi
$52,550
Median income
$225,500
Median home value
24.3%
Bachelor's or higher

The verdict

Seneca pairs one of the lowest household incomes in the country with above-median home values, in a rural, homeowner-dominated area.

18th pct
household income, US ZIPs
Top 49%
home value, US ZIPs
106
people per sq mi
63%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 29678 against every reporting US ZIP.

ZIP code 29678 is a densely settled ZIP (a standard USPS delivery area) in Seneca, Oconee County, South Carolina, with 21,676 residents across 204.9 square miles, a density of 106 people per square mile, in the New York time zone.

ZIP 29678 reports a modest median household income of $52,550 (18% below the South Carolina average), while per-capita income is $32,407. Poverty here runs at 22.3%, with unemployment measured at 8.3%. Housing costs here run $225,500 for a typical home value (0% below the state average), with rent averaging $913 a month; 63.1% of homes are owner-occupied.

Educational attainment sits below the national norm: 24.3% of adults hold a bachelor's degree or higher, the median age is 38.4, and the average commute is 22 minutes. A geography-based comparison follows: 8 ZIP codes within about 10 miles of 29678, plus 6 more within Oconee County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 29678

Top 5 sectors by establishment count in Seneca, SC

Which industries have the most business establishments in ZIP 29678.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 29678, Seneca, SC · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

21,676

Population

204.9

Area (sq mi)

106

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 29678?

38.4

Median Age

48.5%

Male

51.5%

Female

2.4%

Foreign-Born

White 77.6%
African American 14.6%
Asian 0.9%
American Indian or Alaska Native 0.8%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 4.6%
Hispanic or Latino 4.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$52,550

Median Household Income

-18% vs state

$32,407

Per Capita Income

22.3%

Poverty Rate

8.3%

Unemployment Rate

21.6 min

Mean Commute Time

How ZIP 29678 ranks nationally

Seneca, SC household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$52,550 18th percentile higher than 18% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 54.5%
Bachelor's Degree or Higher 24.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

11,819

Total Housing Units

10,394

Occupied Units

1,425

Vacant Units

2.26

Avg Household Size

Occupancy Type

Owner 63.1%
Renter 36.9%

$225,500

Median Home Value

-0% vs state

$913

Median Rent

1989

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+10.2%

YoY Change (2024)

266

HPI Index (2000 = 100)

+166%

Total Change Since 2000

Home values in ZIP 29678 have increased 10.2% over the past year (2024). Since 2000, this ZIP has seen +166% cumulative appreciation.

Year Annual Change HPI Index
2020 +5.0% 162
2021 +11.7% 181
2022 +24.8% 225
2023 +7.2% 242
2024 +10.2% 266

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 741 business establishments in ZIP 29678, employing approximately 9,736 people with a combined annual payroll of $506,255,000.

741

Businesses

9,736

Employees

$506.3M

Annual Payroll

14

Industry Sectors

Industry Establishments % of Total
Retail trade 153 20.6%
Accommodation and food services 81 10.9%
Other services (except public administration) 79 10.7%
Health care and social assistance 76 10.3%
Construction 72 9.7%
Finance and insurance 71 9.6%
Professional, scientific, and technical services 49 6.6%
Real estate and rental and leasing 42 5.7%
Administrative and support and waste management and remediation services 42 5.7%
Manufacturing 21 2.8%
Wholesale trade 16 2.2%
Arts, entertainment, and recreation 14 1.9%
Transportation and warehousing 11 1.5%
Information 10 1.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 29678 vs 29672 →

ZIP 29678 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 29678 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 29678 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 29678 ranks #6 of 8 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
29672 Seneca, SC 11,868 8.0 mi
29665 Newry, SC 127 6.5 mi
29634 Clemson, SC 5,589 6.5 mi
29631 Clemson, SC 13,318 7.8 mi
29689 Townville, SC 3,889 8.2 mi
29643 Fair Play, SC 2,756 9.0 mi
29696 West Union, SC 4,125 10.5 mi
29630 Central, SC 14,186 11.0 mi

More ZIP Codes in Oconee County

29693 standard
Westminster, SC
Pop: 14,215
29672 standard
Seneca, SC
Pop: 11,868
29691 standard
Walhalla, SC
Pop: 11,333
29676 standard
Salem, SC
Pop: 5,201
29696 standard
West Union, SC
Pop: 4,125
29643 standard
Fair Play, SC
Pop: 2,756

Related Areas

Oconee County Seneca, SC South Carolina

Frequently Asked Questions

What county is ZIP code 29678 in? ▼
ZIP code 29678 (Seneca) is located in Oconee County, South Carolina. Oconee County contains multiple ZIP codes, see the full list at /counties/oconee-sc.
What is the population of ZIP code 29678? ▼
ZIP code 29678 in Seneca, SC has a population of 21,676 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 29678? ▼
The median household income in ZIP 29678 is $52,550, which is 31% below the national average of $76,288.
What is the average home value in ZIP 29678? ▼
The median home value in ZIP 29678 is $225,500, which is 19% below the national average of $278,155.
What is the demographic makeup of ZIP 29678? ▼
The largest racial group in ZIP 29678 is White at 77.6%. Hispanic or Latino residents make up 4.8% of the population.
How many businesses are in ZIP code 29678? ▼
ZIP code 29678 has 741 business establishments employing approximately 9,736 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 29678? ▼
The top industries by establishment count in ZIP 29678 are: Retail trade (153), Accommodation and food services (81), Other services (except public administration) (79). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 29678? ▼
According to the FHFA House Price Index, home values in ZIP 29678 increased by 10.2% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 166%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 29678? ▼
In ZIP code 29678, 54.5% of residents aged 25+ have a high school diploma or higher, and 24.3% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 29678? ▼
The mean commute time for workers in ZIP code 29678 is 21.6 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 29678? ▼
In ZIP code 29678, approximately 63.1% of occupied housing units are owner-occupied and 36.9% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 29678? ▼
The poverty rate in ZIP code 29678 is 22.3% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.