Boundary Atlas

Seneca, South Carolina

Seneca is a city in Oconee County, South Carolina, with 8,878 residents in 2020. It is in South Carolina's 3rd congressional district. Its state senate district is State Senate District 1; its state house district is State House District 2.

8,878residents (2020 Census)
8.5 sq miland area
2ZIP codes
1congressional district

County

CountyShare of residents
Oconee County100%

Congressional district

Congressional districtShare of residents
South Carolina's 3rd congressional district (SC-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (SC-03)Sheri Biggs (R)202-225-5301100%
U.S. SenatorDarline Graham (R)202-224-5972statewide
U.S. SenatorTim Scott (R)202-224-6121 · contact formstatewide
State Senator (State Senate District 1)Tom Alexander (R)100%
State Representative (State House District 2)Adam Duncan (R)100%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of residents
State Senate District 1100%

State house districtShare of residents
State House District 2100%

ZIP codes

Percentages mark ZIPs only partly in Seneca: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Seneca's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:4565095")

Seneca here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.