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Oacoma, SD

Town in Lyman County, South Dakota.

Population

548

Land area

2.6sq mi

People per sq mi

209

ZIP codes

0

Oacoma and its ZIP codes

Full map

Oacoma at a glance

  • Oacoma is about 17 times as dense as South Dakota as a whole.
  • The median household income is $73,333, close to the South Dakota median.
  • A typical owner-occupied home is valued at $171,700 (33% below South Dakota) and median rent is $883 a month.

Local data for Oacoma, SD

Counts from official public data

Housing and community stats

Oacoma, SD, American Community Survey 2020-2024

Full profile

Median household income

$73,333

Poverty rate

5.5%

Median home value

$171,700

Median rent

$883/mo

Homeownership

77.7%

Bachelor's or higher

18.8%

Median age

40.2

Average commute

15.0 min

Largest reported origins and ancestries: German Americans (102), Irish Americans (56), Norwegian Americans (43).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, pay, income and spending are for Lyman County. PPP loans are for Oacoma.

Details

Unemployment rate

3.1%

Aug 2026, +0.7 pts in a year

Average annual pay

$40,362

1,346 jobs, 2025

Income per person

$52,419

BEA, 2024

Federal spending

$65.93M

FY 2026, $17,731 per person

Lyman County economyFederal spending

How people get to work

Oacoma, SD, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone74.3%
  • Carpooled14.7%
  • Public transit0.0%
  • Walked1.6%
  • Bicycle0.0%
  • Taxi, ride-hailing, motorcycle or other3.3%
  • Worked from home6.1%

Average one-way commute: 15.0 minutes for people who do not work from home.

Environment and hazard risk

Oacoma, SD, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: cold wave

Storm events since 1996

855

Countywide, mostly thunderstorm wind

Flood insurance policies

2

0.1% of homes, county

July high / Jan low

88° / 11°F

20.4 inches of rain a year

Hazards, floods and storm historyCheck a flood zone

Health statistics

Share of adults in Oacoma, SD, CDC PLACES estimates

All 40 measures

Obesity

35.3%

U.S. 33.3% +2.0 pts

Diabetes

12.7%

U.S. 12.1% +0.6 pts

Smoking

14.0%

U.S. 12.8% +1.2 pts

Uninsured (18-64)

6.7%

U.S. 11.1% -4.4 pts

Cities near Oacoma

NameDistanceLand area (sq mi)
ChamberlainCity2 mi4.5
PukwanaTown9.1 mi0.8
RelianceTown13 mi1.1
OlaCensus-designated place16 mi4
Fort ThompsonCensus-designated place17 mi10.4
KimballCity21 mi3.4
Lower BruleCensus-designated place21 mi0.4
HamillCensus-designated place22 mi1.2
Bijou HillsCensus-designated place23 mi5.3
West BruleCensus-designated place23 mi1.2
Gann ValleyCensus-designated place24 mi0.1
KennebecTown26 mi0.9
Grass Ranch ColonyCensus-designated place26 mi1.1
Platte ColonyCensus-designated place26 mi0.3
Spring Valley ColonyCensus-designated place29 mi0.5

Frequently asked questions

What county is Oacoma, SD in?
Oacoma is in Lyman County, South Dakota.
What is the population of Oacoma, SD?
About 548 people live in Oacoma, based on American Community Survey 5-year estimates.
What cities are near Oacoma?
Nearby places include Chamberlain (2 mi), Pukwana (9.1 mi), Reliance (13 mi), Ola (16 mi), Fort Thompson (17 mi).

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023