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Seneca, SD
Town in Faulk County, South Dakota.
Population
22
Land area
0.4sq mi
People per sq mi
53
ZIP codes
0
Seneca and its ZIP codes
Seneca at a glance
- Seneca is about 4.4 times as dense as South Dakota as a whole.
Economy and federal money
Jobs, pay, income and spending are for Faulk County. PPP loans are for Seneca.
Unemployment rate
2.1%
Aug 2026, +0.6 pts in a year
Average annual pay
$45,410
668 jobs, 2025
Income per person
$86,022
BEA, 2024
Federal spending
$39.4M
FY 2026, $18,551 per person
Environment and hazard risk
Seneca, SD, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: hail
Storm events since 1996
547
Countywide, mostly hail
Flood insurance policies
1
0.1% of homes, county
July high / Jan low
85° / 5°F
21.0 inches of rain a year
Cities near Seneca
| Name | Distance | Land area (sq mi) |
|---|---|---|
| OnakaTown | 9.4 mi | 0.3 |
| TolstoyTown | 11 mi | 0.2 |
| Brentwood ColonyCensus-designated place | 12 mi | 0.9 |
| LebanonTown | 13 mi | 0.5 |
| Thunderbird ColonyCensus-designated place | 15 mi | 0.5 |
| HovenTown | 18 mi | 0.3 |
| FaulktonCity | 19 mi | 1 |
| Blumengard ColonyCensus-designated place | 21 mi | 0.2 |
| GettysburgCity | 22 mi | 1.9 |
| Evergreen ColonyCensus-designated place | 23 mi | 1 |
| OrientTown | 23 mi | 0.3 |
| BowdleCity | 28 mi | 0.6 |
| RoscoeCity | 28 mi | 0.4 |
| CresbardTown | 29 mi | 0.4 |
| LowryTown | 29 mi | 0.3 |
Frequently asked questions
- What county is Seneca, SD in?
- Seneca is in Faulk County, South Dakota.
- What is the population of Seneca, SD?
- About 22 people live in Seneca, based on American Community Survey 5-year estimates.
- What cities are near Seneca?
- Nearby places include Onaka (9.4 mi), Tolstoy (11 mi), Brentwood Colony (12 mi), Lebanon (13 mi), Thunderbird Colony (15 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023