57770 ZIP Code — Pine Ridge, SD

Oglala Lakota County, South Dakota

ZIP code 57770 is located in Pine Ridge, South Dakota, within Oglala Lakota County. It covers approximately 194.04 square miles and serves a population of 5,815 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.

About ZIP code 57770

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $57,100. Owner-occupancy sits near the national average at 50%.

Median household income is $50,811. Poverty affects 38% of residents, above the national average. SNAP benefit usage at 38% of households reflects economic stress in the area.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 11 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 smoking (37%) compared to national benchmarks. 43% of residents lack health insurance, above the national average.

Overall, ZIP code 57770 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, and elevated reliance on food assistance.

5,815

population

194.04

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

57770 ZIP code map

Cities in ZIP code 57770

Below are the cities the US Postal Service accepts for ZIP code 57770. Using any city not on this list may result in mail delivery delays.

City	Status
Pine Ridge	Acceptable
Pine Ridge	Preferred

Nearby ZIP codes

57764 Oglala (6.8 mi)

Demographics updated 06/2026

Population
Total population	5,815
Population density	30 / sq mi
State FIPS	46
County FIPS	102

Geography
Land area	194.04 sq mi
Water area	0.17 sq mi
Latitude	43.3438
Longitude	-102.6778
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	61.0%	66.6%	41.7%
$50k – $100k	28.5%	23.1%	33.8%
$100k – $200k	5.1%	7.0%	20.1%
Over $200k	5.4%	3.3%	4.4%

Demographics & statistics

5,815

Population

People per sq mi

25.9

Median age

$50,811

Median household income

$11,732

Per capita income

$57,100

Median home value

$623

Median monthly rent

50.2%

Home ownership

37.6%

Poverty rate

7.1%

Unemployment

818

Housing units

8.6%

Bachelor's or higher

Age distribution

Male Female

270

Under 5

284

338

5–9

355

326

10–14

342

241

15–19

253

214

20–24

225

352

25–34

369

376

35–44

395

279

45–54

293

100

55–59

105

131

60–64

138

133

65–74

140

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,256	38.8%
18 and over	3,559	61.2%
65 and over	429	7.4%
Median age	25.9 years

Race & ethnicity

American Indian / Alaska Native 93.1%

White 6.5%

Two or more races 0.4%

Group	Count	%
American Indian / Alaska Native	5,412	93.1%
White	379	6.5%
Two or more races	24	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	61.0%	66.6%	41.7%
$50k – $100k	28.5%	23.1%	33.8%
$100k – $200k	5.1%	7.0%	20.1%
Over $200k	5.4%	3.3%	4.4%

Under $10k 11.6%

$10k–$15k 4.4%

$15k–$25k 10.7%

$25k–$35k 7.5%

$35k–$50k 14.6%

$50k–$75k 25.4%

$75k–$100k 13.0%

$100k–$150k 6.7%

$150k–$200k 4.1%

$200k+ 2.0%

Range	% of households
Under $10k	11.6%
$10k–$15k	4.4%
$15k–$25k	10.7%
$25k–$35k	7.5%
$35k–$50k	14.6%
$50k–$75k	25.4%
$75k–$100k	13.0%
$100k–$150k	6.7%
$150k–$200k	4.1%
$200k+	2.0%
Median income	$50,811

Housing

Home values

Under $50k 39.5%

$50k–$100k 29.6%

$100k–$150k 14.2%

$150k–$200k 16.7%

Housing overview

Metric	Value
Median home value	$57,100
Median rent / month	$623
Owner occupied	50.2%
Renter occupied	49.8%
Vacant	22.9%
Single-family detached	66.3%
Large apartment buildings	0.0%
Mobile homes	24.8%
Median rooms	5.2
Avg household size (owned)	5.55

Year built

Era	%
2020 or later	0.0%
2010–2019	2.2%
2000–2009	11.4%
1990–1999	30.1%
1980–1989	11.5%
1970–1979	24.2%
1960–1969	17.2%
1950–1959	2.7%
1940–1949	0.2%
1939 or earlier	0.6%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	6.0%
2 bedrooms	17.4%
3 bedrooms	49.0%
4 bedrooms	21.5%
5+ bedrooms	3.6%

Vehicles per household

Vehicles	% of households
No vehicle	19.3%
1 vehicle	28.5%
2 vehicles	26.4%
3 or more	25.8%

Heating fuel

Fuel type	%
Electricity	38.9%
Propane / LP gas	49.2%
Fuel oil	4.3%
Wood	7.6%

Households & families

Household type	Count	%
Married-couple family	243	23.7%
Cohabiting couple	117	11.4%
Male householder, no spouse	144	14.1%
Female householder, no spouse	520	50.8%
Households with children under 18	725	70.8%
Households with seniors (65+)	260	25.4%
Average household size	5.51

Marital status

Status	Male	Female
Never married	68.4%	59.1%
Married	15.6%	20.0%
Separated	0.0%	1.7%
Widowed	3.1%	6.0%
Divorced	12.9%	13.1%

Education

Less than 9th grade 2.2%

Some HS, no diploma 20.9%

HS graduate 36.5%

Some college, no degree 25.2%

Associate's degree 6.6%

Bachelor's degree 5.6%

Graduate / professional 2.9%

Metric	%
HS diploma or higher	76.9%
Bachelor's or higher	8.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	102	5.2%
Kindergarten	92	4.7%
Elementary school	1,078	55.3%
High school	500	25.6%
College / grad school	179	9.2%

Employment

Industry of employment

Education & healthcare 36.3%

Public administration 23.1%

Construction 13.8%

Retail trade 11.9%

Arts, food & hospitality 6.9%

Finance & real estate 3.5%

Professional & management 1.3%

Other services 1.3%

Agriculture & mining 1.0%

Transportation & utilities 0.9%

Occupation

Category	%
Management, business & arts	26.8%
Service	32.5%
Sales & office	18.1%
Natural resources & construction	16.3%
Production & transportation	6.3%

Employment type

Type	%
Private sector	33.9%
Government	58.5%
Self-employed	7.6%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.7%
Carpool	12.8%
Public transit	0.0%
Walk	8.0%
Work from home	1.5%
Other means	6.0%
Avg commute (minutes)	11.0

Poverty

All people 37.6%

Under 18 years 37.5%

18 and over 37.7%

Married-couple families 18.1%

Female-led households 38.4%

Income support

Source	% of households
Social Security	25.0%
Retirement income	3.2%
Supplemental Security	16.2%
Cash public assistance	11.2%
Food stamps / SNAP	38.4%

Health indicators

Condition	%
Obesity	43.2%
High blood pressure	31.1%
High cholesterol	24.5%
Diabetes	14.9%
Heart disease	7.8%
Stroke	5.2%
Asthma	14.2%
Arthritis	23.2%
Kidney disease	4.0%
Pulmonary disease	9.4%
Cancer	4.4%

Behavior / access	%
Smoking	37.4%
Binge drinking	20.0%
No physical activity	35.1%
Less than 7 hrs sleep	34.3%
Depression	19.0%
Fair or poor health	24.8%
Poor mental health	18.9%
Poor physical health	15.9%
No health insurance	18.2%
Visited doctor (checkup)	73.5%
Visited dentist	48.3%
Cholesterol screening	80.3%
Teeth loss	36.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	127	3.6%

Disability	%
Any disability	9.6%
Under 18	1.6%
18–64 years	11.1%
65 and over	43.2%

Health insurance coverage

Type	%
Private insurance	14.0%
Public insurance	43.3%
No insurance	42.9%
Uninsured under 19	22.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	5,261	90.5%
Spanish	25	0.5%
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)	5,815	100.0%
Born in same state	5,815	100.0%
Born in different state	5,086	87.5%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	202	3.5%
Italian	106	1.8%
Polish	28	0.5%

Ancestry	Count	%
French	21	0.4%
Dutch	5	0.1%

Technology access

Metric	% of households
Computer access	17.6%
Internet access	71.0%

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

Frequently asked questions about ZIP code 57770

What city is ZIP code 57770 in?

ZIP code 57770 is primarily assigned to Pine Ridge, South Dakota.

What county is ZIP code 57770 in?

ZIP code 57770 falls within Oglala Lakota County, South Dakota.

Is ZIP code 57770 family-oriented?

39% of residents in ZIP code 57770 are under 18, reflecting a younger, family-oriented community.

What is the poverty rate in ZIP code 57770?

38% of residents in ZIP code 57770 live below the poverty line, above the national average.

How educated is the population of ZIP code 57770?

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

What is the typical home value in ZIP code 57770?

The median home value in ZIP code 57770 is $57,100.

What timezone is ZIP code 57770 in?

ZIP code 57770 observes the MST timezone.