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Zip Code 29678 — Seneca, SC

ZIP Code 29678 is associated with Seneca, SC, in Oconee County. The listed population estimate is 23,767; estimated density is 115.0 people per square mile. Among records with population estimates, it ranks #1 of 11 in Oconee County and #82 of 422 in SC.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (34.633650, -82.939910)

Data MetricLocal Statistic
Postal / Zip Code29678
Primary CitySeneca
State / ProvinceSC
CountyOconee
Total Population23,767
Population Density115.0 people/sq mi
TimezoneAmerica/New_York

How 29678 Compares

MetricZIP 29678Oconee County recordsSC records
Population estimate23,76780,896 (sum)5,296,225 (sum)
Population Density115.0 /sq mi----
County population rank#1 of 11----
State population rank#82 of 422----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in SC

ZIP CodeCityDistancePopulation estimate
ZIP 29634Clemson6.4 mi6,048
ZIP 29665Newry6.4 mi412
ZIP 29689Townville7.6 mi4,057
ZIP 29631Clemson7.7 mi16,849
ZIP 29672Seneca8.1 mi12,750

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →