57323 ZIP Code — Carthage, SD

Miner County, South Dakota

ZIP code 57323 is located in Carthage, South Dakota, within Miner County. It covers approximately 122.73 square miles and serves a population of 212 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57323

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 $70,000. Owner-occupancy is high at 89%, well above the national average.

Median household income is $63,750. 50% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Educational attainment is near the national average, with 29% of residents holding a bachelor's degree or higher.

Overall, ZIP code 57323 reflects a community defined by high homeownership and a significant Social Security-dependent population.

212

population

122.73

sq mi land

Standard

ZIP type

Central (CT)

timezone

57323 ZIP code map

Cities in ZIP code 57323

Below are the cities the US Postal Service accepts for ZIP code 57323. Using any city not on this list may result in mail delivery delays.

City	Status
Carthage	Preferred

Nearby ZIP codes

57349 Howard (9 mi) 57314 Artesian (14.7 mi) 57321 Canova (18.1 mi) 57353 Iroquois (19 mi) 57231 De Smet (19.4 mi)

Demographics updated 05/2026

Population
Total population	212
Population density	2 / sq mi
State FIPS	46
County FIPS	097

Geography
Land area	122.73 sq mi
Water area	0.32 sq mi
Latitude	44.1093
Longitude	-97.7110
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	32.8%	49.6%	41.7%
$50k – $100k	55.2%	34.5%	33.8%
$100k – $200k	10.4%	13.1%	20.1%
Over $200k	1.6%	2.8%	4.4%

Demographics & statistics

212

Population

People per sq mi

57.9

Median age

$63,750

Median household income

$32,764

Per capita income

$70,000

Median home value

Median monthly rent

88.9%

Home ownership

11.3%

Poverty rate

4.3%

Unemployment

150

Housing units

29.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

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	46	21.7%
18 and over	166	78.3%
65 and over	86	40.6%
Median age	57.9 years

Race & ethnicity

White 96.2%

American Indian / Alaska Native 3.3%

Asian 0.5%

Group	Count	%
White	204	96.2%
American Indian / Alaska Native	7	3.3%
Asian	1	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.8%	49.6%	41.7%
$50k – $100k	55.2%	34.5%	33.8%
$100k – $200k	10.4%	13.1%	20.1%
Over $200k	1.6%	2.8%	4.4%

Under $10k 8.1%

$10k–$15k 10.1%

$15k–$25k 11.1%

$25k–$35k 4.0%

$35k–$50k 9.1%

$50k–$75k 10.1%

$75k–$100k 9.1%

$100k–$150k 32.3%

$150k–$200k 4.0%

$200k+ 2.0%

Range	% of households
Under $10k	8.1%
$10k–$15k	10.1%
$15k–$25k	11.1%
$25k–$35k	4.0%
$35k–$50k	9.1%
$50k–$75k	10.1%
$75k–$100k	9.1%
$100k–$150k	32.3%
$150k–$200k	4.0%
$200k+	2.0%
Median income	$63,750

Housing

Home values

Under $50k 40.9%

$50k–$100k 29.5%

$100k–$150k 23.9%

$150k–$200k 2.3%

$1M+ 3.4%

Housing overview

Metric	Value
Median home value	$70,000
Median rent / month	$0
Owner occupied	88.9%
Renter occupied	11.1%
Vacant	38.5%
Single-family detached	98.1%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.2
Avg household size (owned)	2.15

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	0.6%
1990–1999	8.7%
1980–1989	2.5%
1970–1979	18.0%
1960–1969	18.6%
1950–1959	4.3%
1940–1949	4.3%
1939 or earlier	42.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	33.5%
3 bedrooms	36.0%
4 bedrooms	19.9%
5+ bedrooms	10.6%

Vehicles per household

Vehicles	% of households
No vehicle	2.0%
1 vehicle	21.2%
2 vehicles	18.2%
3 or more	58.6%

Heating fuel

Fuel type	%
Utility gas	2.0%
Electricity	40.4%
Propane / LP gas	47.5%
Fuel oil	3.0%
Wood	1.0%
No fuel used	1.0%

Households & families

Household type	Count	%
Married-couple family	55	55.6%
Cohabiting couple	7	7.1%
Male householder, no spouse	14	14.1%
Female householder, no spouse	23	23.2%
Households with children under 18	16	16.2%
Households with seniors (65+)	60	60.6%
Average household size	2.14

Marital status

Status	Male	Female
Never married	11.8%	10.0%
Married	69.7%	61.1%
Separated	0.0%	10.0%
Widowed	1.3%	15.6%
Divorced	17.1%	3.3%

Education

Less than 9th grade 0.0%

Some HS, no diploma 1.2%

HS graduate 41.6%

Some college, no degree 13.0%

Associate's degree 14.9%

Bachelor's degree 24.2%

Graduate / professional 5.0%

Metric	%
HS diploma or higher	98.8%
Bachelor's or higher	29.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	9	28.1%
Kindergarten	0	0.0%
Elementary school	22	68.8%
High school	0	0.0%
College / grad school	1	3.1%

Employment

Industry of employment

Education & healthcare 33.9%

Agriculture & mining 23.2%

Retail trade 11.6%

Manufacturing 6.3%

Transportation & utilities 6.3%

Other services 5.4%

Arts, food & hospitality 4.5%

Construction 3.6%

Finance & real estate 3.6%

Wholesale trade 1.8%

Occupation

Category	%
Management, business & arts	57.1%
Service	23.2%
Sales & office	1.8%
Natural resources & construction	5.4%
Production & transportation	12.5%

Employment type

Type	%
Private sector	73.2%
Government	6.3%
Self-employed	20.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	75.5%
Carpool	0.9%
Public transit	0.0%
Walk	6.4%
Work from home	13.6%
Other means	3.6%
Avg commute (minutes)	25.5

Poverty

All people 11.3%

Under 18 years 0.0%

18 and over 14.5%

Married-couple families 12.7%

Female-led households 0.0%

Income support

Source	% of households
Social Security	49.5%
Retirement income	25.3%
Supplemental Security	2.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	32.3%
High blood pressure	35.3%
High cholesterol	33.5%
Diabetes	10.3%
Heart disease	8.4%
Stroke	3.7%
Asthma	8.5%
Arthritis	28.2%
Kidney disease	3.4%
Pulmonary disease	7.0%
Cancer	9.0%

Behavior / access	%
Smoking	17.3%
Binge drinking	17.7%
No physical activity	24.8%
Less than 7 hrs sleep	28.4%
Depression	14.4%
Fair or poor health	12.5%
Poor mental health	9.9%
Poor physical health	9.6%
No health insurance	11.8%
Visited doctor (checkup)	76.6%
Visited dentist	67.1%
Cholesterol screening	90.6%
Teeth loss	14.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	8	4.8%

Disability	%
Any disability	16.5%
Under 18	0.0%
18–64 years	23.8%
65 and over	18.6%

Health insurance coverage

Type	%
Private insurance	79.7%
Public insurance	46.2%
No insurance	6.1%
Uninsured under 19	10.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	197	92.9%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	212	100.0%
Born in same state	212	100.0%
Born in different state	183	86.3%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Polish	41	19.3%
Arab	28	13.2%
French	12	5.7%

Ancestry	Count	%
Dutch	7	3.3%
English	2	0.9%
Italian	2	0.9%

Technology access

Metric	% of households
Computer access	46.7%
Internet access	85.9%

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

Frequently asked questions about ZIP code 57323

What city is ZIP code 57323 in?

ZIP code 57323 is primarily assigned to Carthage, South Dakota.

What county is ZIP code 57323 in?

ZIP code 57323 falls within Miner County, South Dakota.

Does ZIP code 57323 have an older population?

41% of residents in ZIP code 57323 are 65 or older, above the national average of ~17%.

Does ZIP code 57323 have a large retiree population?

50% of households in ZIP code 57323 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 57323 mostly owner-occupied?

89% of occupied units in ZIP code 57323 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 57323?

The median home value in ZIP code 57323 is $70,000.

What timezone is ZIP code 57323 in?

ZIP code 57323 observes the CST timezone.