57764 ZIP Code — Oglala, SD

Oglala Lakota County, South Dakota

ZIP code 57764 is located in Oglala, South Dakota, within Oglala Lakota County. It covers approximately 272.60 square miles and serves a population of 1,968 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.

About ZIP code 57764

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Renters make up the majority at 57%, typical of denser urban areas.

The gap between median ($29,318) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 49% of residents, above the national average. SNAP benefit usage at 50% of households reflects economic stress in the area.

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

College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of obesity (46%), diabetes (17%), smoking (42%) compared to national benchmarks. 47% of residents lack health insurance, above the national average.

Overall, ZIP code 57764 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and elevated reliance on food assistance.

1,968

population

272.60

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

57764 ZIP code map

Cities in ZIP code 57764

Below are the cities the US Postal Service accepts for ZIP code 57764. Using any city not on this list may result in mail delivery delays.

City	Status
Oglala	Preferred

Nearby ZIP codes

57770 Pine Ridge (6.8 mi)

Demographics updated 06/2026

Population
Total population	1,968
Population density	7 / sq mi
State FIPS	46
County FIPS	102

Geography
Land area	272.60 sq mi
Water area	0.93 sq mi
Latitude	43.2692
Longitude	-102.7648
Timezone	Mountain (MT)
Area code	605

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	72.0%	66.6%	41.7%
$50k – $100k	10.5%	23.1%	33.8%
$100k – $200k	13.7%	7.0%	20.1%
Over $200k	3.8%	3.3%	4.4%

Demographics & statistics

1,968

Population

People per sq mi

28.1

Median age

$29,318

Median household income

$17,383

Per capita income

Median home value

$555

Median monthly rent

43.1%

Home ownership

49.3%

Poverty rate

18.1%

Unemployment

271

Housing units

8.9%

Bachelor's or higher

Age distribution

Male Female

100

Under 5

5–9

115

10–14

15–19

106

20–24

200

25–34

147

111

35–44

152

45–54

111

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	626	31.8%
18 and over	1,342	68.2%
65 and over	104	5.3%
Median age	28.1 years

Race & ethnicity

American Indian / Alaska Native 91.2%

Hispanic or Latino 4%

Two or more races 4%

White 0.9%

Group	Count	%
American Indian / Alaska Native	1,868	91.2%
Hispanic or Latino	81	4%
Two or more races	81	4%
White	19	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	72.0%	66.6%	41.7%
$50k – $100k	10.5%	23.1%	33.8%
$100k – $200k	13.7%	7.0%	20.1%
Over $200k	3.8%	3.3%	4.4%

Under $10k 15.6%

$10k–$15k 12.8%

$15k–$25k 12.1%

$25k–$35k 17.7%

$35k–$50k 9.1%

$50k–$75k 6.5%

$75k–$100k 3.0%

$100k–$150k 16.7%

$150k–$200k 3.0%

$200k+ 3.5%

Range	% of households
Under $10k	15.6%
$10k–$15k	12.8%
$15k–$25k	12.1%
$25k–$35k	17.7%
$35k–$50k	9.1%
$50k–$75k	6.5%
$75k–$100k	3.0%
$100k–$150k	16.7%
$150k–$200k	3.0%
$200k+	3.5%
Median income	$29,318

Housing

Home values

Under $50k 77.9%

$50k–$100k 15.1%

$100k–$150k 7.0%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$555
Owner occupied	43.1%
Renter occupied	56.9%
Vacant	13.5%
Single-family detached	71.2%
Large apartment buildings	0.0%
Mobile homes	24.2%
Median rooms	4.5
Avg household size (owned)	4.23

Year built

Era	%
2020 or later	0.0%
2010–2019	6.4%
2000–2009	25.7%
1990–1999	19.1%
1980–1989	15.4%
1970–1979	23.2%
1960–1969	1.5%
1950–1959	3.0%
1940–1949	0.0%
1939 or earlier	5.8%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	8.1%
2 bedrooms	40.3%
3 bedrooms	37.8%
4 bedrooms	12.4%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	37.0%
1 vehicle	25.1%
2 vehicles	28.8%
3 or more	9.1%

Heating fuel

Fuel type	%
Utility gas	3.5%
Electricity	42.6%
Propane / LP gas	49.6%
Wood	4.3%

Households & families

Household type	Count	%
Married-couple family	103	22.3%
Cohabiting couple	0	0.0%
Male householder, no spouse	179	38.7%
Female householder, no spouse	180	39.0%
Households with children under 18	265	57.4%
Households with seniors (65+)	104	22.5%
Average household size	4.22

Marital status

Status	Male	Female
Never married	66.6%	59.4%
Married	18.5%	17.7%
Separated	4.3%	0.0%
Widowed	0.0%	7.1%
Divorced	10.6%	15.8%

Education

Less than 9th grade 0.0%

Some HS, no diploma 26.4%

HS graduate 41.0%

Some college, no degree 12.4%

Associate's degree 11.3%

Bachelor's degree 4.8%

Graduate / professional 4.1%

Metric	%
HS diploma or higher	73.6%
Bachelor's or higher	8.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	45	8.1%
Elementary school	322	57.8%
High school	150	26.9%
College / grad school	40	7.2%

Employment

Industry of employment

Education & healthcare 35.4%

Professional & management 15.6%

Arts, food & hospitality 14.7%

Retail trade 9.5%

Agriculture & mining 8.7%

Manufacturing 5.5%

Wholesale trade 3.4%

Finance & real estate 3.1%

Other services 2.7%

Public administration 1.5%

Occupation

Category	%
Management, business & arts	33.1%
Service	25.8%
Sales & office	15.7%
Natural resources & construction	9.9%
Production & transportation	15.4%

Employment type

Type	%
Private sector	48.9%
Government	48.2%
Self-employed	2.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	61.1%
Carpool	4.4%
Public transit	0.0%
Walk	2.4%
Work from home	0.8%
Other means	31.3%
Avg commute (minutes)	21.5

Poverty

All people 49.3%

Under 18 years 56.2%

18 and over 46.1%

Married-couple families 27.2%

Female-led households 46.7%

Income support

Source	% of households
Social Security	22.3%
Retirement income	11.0%
Supplemental Security	22.3%
Cash public assistance	19.7%
Food stamps / SNAP	50.2%

Health indicators

Condition	%
Obesity	45.7%
High blood pressure	33.5%
High cholesterol	23.5%
Diabetes	16.9%
Heart disease	9.0%
Stroke	6.1%
Asthma	15.2%
Arthritis	24.8%
Kidney disease	4.6%
Pulmonary disease	11.5%
Cancer	4.3%

Behavior / access	%
Smoking	42.1%
Binge drinking	19.2%
No physical activity	39.3%
Less than 7 hrs sleep	35.4%
Depression	20.1%
Fair or poor health	29.8%
Poor mental health	20.3%
Poor physical health	18.5%
No health insurance	20.2%
Visited doctor (checkup)	73.7%
Visited dentist	42.2%
Cholesterol screening	78.1%
Teeth loss	42.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	85	6.3%

Disability	%
Any disability	10.1%
Under 18	3.4%
18–64 years	10.8%
65 and over	42.3%

Health insurance coverage

Type	%
Private insurance	14.9%
Public insurance	40.7%
No insurance	46.7%
Uninsured under 19	40.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,795	91.2%
Spanish	40	2.2%
Other Indo-European	0	0.0%
Asian & Pacific Islander	9	0.5%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,968	100.0%
Born in same state	1,968	100.0%
Born in different state	1,627	82.7%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Technology access

Metric	% of households
Computer access	23.5%
Internet access	53.2%

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

Frequently asked questions about ZIP code 57764

What city is ZIP code 57764 in?

ZIP code 57764 is primarily assigned to Oglala, South Dakota.

What county is ZIP code 57764 in?

ZIP code 57764 falls within Oglala Lakota County, South Dakota.

What is the poverty rate in ZIP code 57764?

49% of residents in ZIP code 57764 live below the poverty line, above the national average.

Is ZIP code 57764 family-oriented?

32% of residents in ZIP code 57764 are under 18, reflecting a younger, family-oriented community.

How educated is the population of ZIP code 57764?

9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 57764 mostly rentals?

57% of occupied units in ZIP code 57764 are renter-occupied.

What timezone is ZIP code 57764 in?

ZIP code 57764 observes the MST timezone.