57369 ZIP Code — Platte, SD

Charles Mix County, South Dakota

ZIP code 57369 is located in Platte, South Dakota, within Charles Mix County. It covers approximately 452.40 square miles and serves a population of 2,671 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57369

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 $218,500. Owner-occupancy sits near the national average at 72%.

Median household income is $62,049. Poverty affects 25% of residents, above the national average. 33% 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 9 minutes is near the national average.

Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.

Overall, ZIP code 57369 reflects a community defined by economic challenges above the national average and a significant Social Security-dependent population.

2,671

population

452.40

sq mi land

Standard

ZIP type

Central (CT)

timezone

57369 ZIP code map

Cities in ZIP code 57369

Below are the cities the US Postal Service accepts for ZIP code 57369. Using any city not on this list may result in mail delivery delays.

City	Status
Platte	Acceptable
Platte	Preferred

Nearby ZIP codes

57523 Burke (15.1 mi) 57342 Geddes (19.9 mi)

Demographics updated 05/2026

Population
Total population	2,671
Population density	6 / sq mi
State FIPS	46
County FIPS	023

Geography
Land area	452.40 sq mi
Water area	25.55 sq mi
Latitude	43.3908
Longitude	-99.0128
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	39.4%	48.4%	41.7%
$50k – $100k	42.6%	33.7%	33.8%
$100k – $200k	9.5%	13.5%	20.1%
Over $200k	8.5%	4.4%	4.4%

Demographics & statistics

2,671

Population

People per sq mi

39.2

Median age

$62,049

Median household income

$31,143

Per capita income

$218,500

Median home value

$804

Median monthly rent

71.8%

Home ownership

24.5%

Poverty rate

0.6%

Unemployment

856

Housing units

31.2%

Bachelor's or higher

Age distribution

Male Female

116

Under 5

119

123

5–9

127

10–14

101

15–19

20–24

158

25–34

162

131

35–44

136

148

45–54

152

55–59

60–64

148

65–74

153

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	789	29.5%
18 and over	1,882	70.5%
65 and over	571	21.4%
Median age	39.2 years

Race & ethnicity

White 96.5%

Two or more races 1.6%

Hispanic or Latino 0.8%

American Indian / Alaska Native 0.5%

Other race 0.3%

Asian 0.2%

Group	Count	%
White	2,599	96.5%
Two or more races	44	1.6%
Hispanic or Latino	21	0.8%
American Indian / Alaska Native	14	0.5%
Other race	9	0.3%
Asian	5	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	39.4%	48.4%	41.7%
$50k – $100k	42.6%	33.7%	33.8%
$100k – $200k	9.5%	13.5%	20.1%
Over $200k	8.5%	4.4%	4.4%

Under $10k 3.0%

$10k–$15k 10.5%

$15k–$25k 7.4%

$25k–$35k 10.1%

$35k–$50k 10.1%

$50k–$75k 17.1%

$75k–$100k 15.9%

$100k–$150k 15.0%

$150k–$200k 6.4%

$200k+ 4.6%

Range	% of households
Under $10k	3.0%
$10k–$15k	10.5%
$15k–$25k	7.4%
$25k–$35k	10.1%
$35k–$50k	10.1%
$50k–$75k	17.1%
$75k–$100k	15.9%
$100k–$150k	15.0%
$150k–$200k	6.4%
$200k+	4.6%
Median income	$62,049

Housing

Home values

Under $50k 2.5%

$50k–$100k 9.0%

$100k–$150k 15.4%

$150k–$200k 17.2%

$200k–$300k 27.2%

$300k–$500k 19.2%

$500k–$1M 6.9%

$1M+ 2.5%

Housing overview

Metric	Value
Median home value	$218,500
Median rent / month	$804
Owner occupied	71.8%
Renter occupied	28.2%
Vacant	8.9%
Single-family detached	84.5%
Large apartment buildings	0.4%
Mobile homes	2.3%
Median rooms	6.6
Avg household size (owned)	2.51

Year built

Era	%
2020 or later	0.0%
2010–2019	7.4%
2000–2009	12.1%
1990–1999	6.8%
1980–1989	6.9%
1970–1979	15.1%
1960–1969	5.7%
1950–1959	3.3%
1940–1949	7.5%
1939 or earlier	35.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.1%
1 bedroom	6.2%
2 bedrooms	16.3%
3 bedrooms	35.7%
4 bedrooms	25.2%
5+ bedrooms	15.5%

Vehicles per household

Vehicles	% of households
No vehicle	3.3%
1 vehicle	19.4%
2 vehicles	45.1%
3 or more	32.1%

Heating fuel

Fuel type	%
Utility gas	2.0%
Electricity	40.7%
Propane / LP gas	42.5%
Fuel oil	2.8%
Wood	4.8%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	577	55.0%
Cohabiting couple	48	4.6%
Male householder, no spouse	214	20.4%
Female householder, no spouse	211	20.1%
Households with children under 18	356	33.9%
Households with seniors (65+)	412	39.2%
Average household size	2.49

Marital status

Status	Male	Female
Never married	23.3%	21.4%
Married	60.7%	56.3%
Separated	2.7%	2.3%
Widowed	7.4%	16.4%
Divorced	6.0%	3.7%

Education

Less than 9th grade 11.4%

Some HS, no diploma 1.1%

HS graduate 30.3%

Some college, no degree 10.8%

Associate's degree 15.1%

Bachelor's degree 26.3%

Graduate / professional 4.9%

Metric	%
HS diploma or higher	87.5%
Bachelor's or higher	31.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	27	4.1%
Kindergarten	94	14.3%
Elementary school	357	54.3%
High school	141	21.5%
College / grad school	38	5.8%

Employment

Industry of employment

Agriculture & mining 22.7%

Education & healthcare 17.0%

Construction 10.6%

Retail trade 10.3%

Professional & management 8.3%

Arts, food & hospitality 7.0%

Transportation & utilities 6.4%

Finance & real estate 6.1%

Other services 4.5%

Wholesale trade 3.3%

Public administration 1.7%

Manufacturing 1.3%

Information 0.9%

Occupation

Category	%
Management, business & arts	34.5%
Service	15.6%
Sales & office	26.3%
Natural resources & construction	13.4%
Production & transportation	10.2%

Employment type

Type	%
Private sector	70.5%
Government	10.2%
Self-employed	19.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.6%
Carpool	5.6%
Public transit	0.0%
Walk	0.5%
Work from home	18.4%
Other means	0.9%
Avg commute (minutes)	9.4

Poverty

All people 24.5%

Under 18 years 42.8%

18 and over 16.6%

Married-couple families 16.1%

Female-led households 44.3%

Income support

Source	% of households
Social Security	32.8%
Retirement income	18.0%
Supplemental Security	3.7%
Cash public assistance	1.1%
Food stamps / SNAP	5.2%

Health indicators

Condition	%
Obesity	32.5%
High blood pressure	35.2%
High cholesterol	33.7%
Diabetes	10.4%
Heart disease	8.6%
Stroke	3.9%
Asthma	8.8%
Arthritis	26.8%
Kidney disease	3.5%
Pulmonary disease	7.2%
Cancer	8.7%

Behavior / access	%
Smoking	17.4%
Binge drinking	17.6%
No physical activity	24.7%
Less than 7 hrs sleep	29.8%
Depression	15.0%
Fair or poor health	12.9%
Poor mental health	10.4%
Poor physical health	9.8%
No health insurance	12.0%
Visited doctor (checkup)	77.1%
Visited dentist	67.7%
Cholesterol screening	89.5%
Teeth loss	15.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	105	5.6%

Disability	%
Any disability	8.7%
Under 18	0.0%
18–64 years	5.5%
65 and over	30.2%

Health insurance coverage

Type	%
Private insurance	76.8%
Public insurance	29.6%
No insurance	10.1%
Uninsured under 19	12.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,436	91.2%
Spanish	84	3.4%
Other Indo-European	2	0.1%
Asian & Pacific Islander	77	3.2%
Other languages	5	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,664	99.7%
Born in same state	2,664	99.7%
Born in different state	2,236	83.7%
Foreign born	0	0.0%
Naturalized citizen	7	0.3%
Not a US citizen	5	71.4%

Ancestry

Ancestry	Count	%
English	593	22.2%
Arab	402	15.1%
Polish	251	9.4%
Italian	241	9%

Ancestry	Count	%
German	40	1.5%
French	22	0.8%
Dutch	3	0.1%

Technology access

Metric	% of households
Computer access	39.3%
Internet access	84.7%

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

Frequently asked questions about ZIP code 57369

What city is ZIP code 57369 in?

ZIP code 57369 is primarily assigned to Platte, South Dakota.

What county is ZIP code 57369 in?

ZIP code 57369 falls within Charles Mix County, South Dakota.

What is the poverty rate in ZIP code 57369?

25% of residents in ZIP code 57369 live below the poverty line, above the national average.

What is the population of ZIP code 57369?

ZIP code 57369 has an estimated population of 2,671 residents, with a density of 6 people per square mile.

What is the median household income in ZIP code 57369?

The median household income in ZIP code 57369 is $62,049, below the national median of ~$75,000.

What is the typical home value in ZIP code 57369?

The median home value in ZIP code 57369 is $218,500.

What timezone is ZIP code 57369 in?

ZIP code 57369 observes the CST timezone.