57313 ZIP Code — Armour, SD

Douglas County, South Dakota

ZIP code 57313 is located in Armour, South Dakota, within Douglas County. It covers approximately 181.38 square miles and serves a population of 1,193 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57313

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $119,000. Owner-occupancy is high at 79%, well above the national average.

The gap between median ($71,932) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 26% of residents, above the national average. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 22 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

20% of residents lack health insurance, above the national average.

Overall, ZIP code 57313 reflects a community defined by economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.

1,193

population

181.38

sq mi land

Standard

ZIP type

Central (CT)

timezone

57313 ZIP code map

Cities in ZIP code 57313

Below are the cities the US Postal Service accepts for ZIP code 57313. Using any city not on this list may result in mail delivery delays.

City	Status
Armour	Preferred

Nearby ZIP codes

57328 Corsica (8.2 mi) 57330 Delmont (11.4 mi) 57364 New Holland (13.7 mi) 57356 Lake Andes (15.4 mi) 57342 Geddes (16.4 mi) 57380 Wagner (18.7 mi) 57375 Stickney (19.5 mi)

Demographics updated 05/2026

Population
Total population	1,193
Population density	7 / sq mi
State FIPS	46
County FIPS	043

Geography
Land area	181.38 sq mi
Water area	0.52 sq mi
Latitude	43.3057
Longitude	-98.3862
Timezone	Central (CT)
Area code	605

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.7%	42.2%	41.7%
$50k – $100k	31.5%	34.5%	33.8%
$100k – $200k	25.2%	20.3%	20.1%
Over $200k	1.6%	3.0%	4.4%

Demographics & statistics

1,193

Population

People per sq mi

39.0

Median age

$71,932

Median household income

$37,316

Per capita income

$119,000

Median home value

$681

Median monthly rent

78.5%

Home ownership

26.2%

Poverty rate

0.7%

Unemployment

473

Housing units

23.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	370	31.0%
18 and over	823	69.0%
65 and over	291	24.4%
Median age	39.0 years

Race & ethnicity

White 90.3%

Black or African American 3.8%

Hispanic or Latino 2.3%

Other race 1.6%

American Indian / Alaska Native 1.2%

Two or more races 0.7%

Group	Count	%
White	1,103	90.3%
Black or African American	47	3.8%
Hispanic or Latino	28	2.3%
Other race	20	1.6%
American Indian / Alaska Native	15	1.2%
Two or more races	8	0.7%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	41.7%	42.2%	41.7%
$50k – $100k	31.5%	34.5%	33.8%
$100k – $200k	25.2%	20.3%	20.1%
Over $200k	1.6%	3.0%	4.4%

Under $10k 3.0%

$10k–$15k 5.0%

$15k–$25k 6.6%

$25k–$35k 5.3%

$35k–$50k 19.2%

$50k–$75k 11.9%

$75k–$100k 13.3%

$100k–$150k 16.9%

$150k–$200k 9.2%

$200k+ 9.6%

Range	% of households
Under $10k	3.0%
$10k–$15k	5.0%
$15k–$25k	6.6%
$25k–$35k	5.3%
$35k–$50k	19.2%
$50k–$75k	11.9%
$75k–$100k	13.3%
$100k–$150k	16.9%
$150k–$200k	9.2%
$200k+	9.6%
Median income	$71,932

Housing

Home values

Under $50k 21.0%

$50k–$100k 23.0%

$100k–$150k 10.2%

$150k–$200k 16.6%

$200k–$300k 14.3%

$300k–$500k 6.1%

$1M+ 8.7%

Housing overview

Metric	Value
Median home value	$119,000
Median rent / month	$681
Owner occupied	78.5%
Renter occupied	21.5%
Vacant	22.9%
Single-family detached	84.1%
Large apartment buildings	1.9%
Mobile homes	5.6%
Median rooms	5.6
Avg household size (owned)	2.75

Year built

Era	%
2020 or later	0.9%
2010–2019	6.5%
2000–2009	3.5%
1990–1999	4.9%
1980–1989	3.7%
1970–1979	13.1%
1960–1969	6.0%
1950–1959	14.1%
1940–1949	3.5%
1939 or earlier	43.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	10.2%
2 bedrooms	26.8%
3 bedrooms	35.8%
4 bedrooms	18.3%
5+ bedrooms	8.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.0%
1 vehicle	22.2%
2 vehicles	31.8%
3 or more	43.0%

Heating fuel

Fuel type	%
Electricity	39.4%
Propane / LP gas	33.4%
Fuel oil	23.1%
Wood	0.9%

Households & families

Household type	Count	%
Married-couple family	255	58.4%
Cohabiting couple	12	2.7%
Male householder, no spouse	99	22.7%
Female householder, no spouse	71	16.2%
Households with children under 18	120	27.5%
Households with seniors (65+)	164	37.5%
Average household size	2.60

Marital status

Status	Male	Female
Never married	22.1%	23.3%
Married	61.0%	54.1%
Separated	1.2%	1.9%
Widowed	5.2%	14.2%
Divorced	10.5%	6.5%

Education

Less than 9th grade 3.1%

Some HS, no diploma 4.0%

HS graduate 29.7%

Some college, no degree 22.1%

Associate's degree 17.4%

Bachelor's degree 19.5%

Graduate / professional 4.1%

Metric	%
HS diploma or higher	92.9%
Bachelor's or higher	23.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	37	10.8%
Kindergarten	27	7.9%
Elementary school	183	53.4%
High school	79	23.0%
College / grad school	17	5.0%

Employment

Industry of employment

Agriculture & mining 23.9%

Retail trade 18.1%

Education & healthcare 17.9%

Arts, food & hospitality 8.0%

Public administration 6.8%

Transportation & utilities 5.2%

Other services 4.9%

Manufacturing 4.7%

Finance & real estate 3.1%

Professional & management 2.4%

Construction 2.1%

Information 1.7%

Wholesale trade 1.0%

Occupation

Category	%
Management, business & arts	39.4%
Service	16.9%
Sales & office	19.0%
Natural resources & construction	14.3%
Production & transportation	10.5%

Employment type

Type	%
Private sector	59.1%
Government	17.1%
Self-employed	23.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.7%
Carpool	6.4%
Public transit	0.3%
Walk	5.9%
Work from home	8.0%
Other means	0.5%
Avg commute (minutes)	21.5

Poverty

All people 26.2%

Under 18 years 49.7%

18 and over 15.0%

Married-couple families 18.4%

Female-led households 7.7%

Income support

Source	% of households
Social Security	37.5%
Retirement income	22.2%
Supplemental Security	4.6%
Cash public assistance	1.4%
Food stamps / SNAP	1.4%

Health indicators

Condition	%
Obesity	34.0%
High blood pressure	37.7%
High cholesterol	37.8%
Diabetes	11.3%
Heart disease	9.6%
Stroke	4.2%
Asthma	8.7%
Arthritis	30.5%
Kidney disease	3.8%
Pulmonary disease	7.6%
Cancer	10.1%

Behavior / access	%
Smoking	16.7%
Binge drinking	16.1%
No physical activity	25.6%
Less than 7 hrs sleep	26.9%
Depression	14.4%
Fair or poor health	13.4%
Poor mental health	9.6%
Poor physical health	10.2%
No health insurance	11.9%
Visited doctor (checkup)	78.3%
Visited dentist	67.7%
Cholesterol screening	91.7%
Teeth loss	14.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	90	10.9%

Disability	%
Any disability	10.7%
Under 18	0.5%
18–64 years	8.3%
65 and over	31.7%

Health insurance coverage

Type	%
Private insurance	51.4%
Public insurance	37.8%
No insurance	20.0%
Uninsured under 19	31.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,101	92.3%
Spanish	18	1.6%
Other Indo-European	18	1.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,160	97.2%
Born in same state	1,160	97.2%
Born in different state	975	81.7%
Foreign born	0	0.0%
Naturalized citizen	33	2.8%
Not a US citizen	3	9.1%

Ancestry

Ancestry	Count	%
English	114	9.6%
Italian	89	7.5%
Arab	78	6.5%
Polish	59	4.9%

Ancestry	Count	%
Dutch	16	1.3%
Irish	11	0.9%
French	11	0.9%

Technology access

Metric	% of households
Computer access	36.6%
Internet access	87.0%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 57313

What city is ZIP code 57313 in?

ZIP code 57313 is primarily assigned to Armour, South Dakota.

What county is ZIP code 57313 in?

ZIP code 57313 falls within Douglas County, South Dakota.

Is ZIP code 57313 family-oriented?

31% of residents in ZIP code 57313 are under 18, reflecting a younger, family-oriented community.

What is the poverty rate in ZIP code 57313?

26% of residents in ZIP code 57313 live below the poverty line, above the national average.

Does ZIP code 57313 have a large retiree population?

38% of households in ZIP code 57313 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 57313 have a large veteran population?

11% of civilians in ZIP code 57313 are veterans, above the national average of ~7%.

What timezone is ZIP code 57313 in?

ZIP code 57313 observes the CST timezone.