57745 ZIP Code — Hill City, SD

Pennington County, South Dakota

ZIP code 57745 is located in Hill City, South Dakota, within Pennington County. It covers approximately 385.04 square miles and serves a population of 1,851 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 605.

About ZIP code 57745

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $282,500. Owner-occupancy is high at 84%, well above the national average.

Median household income is $80,000. The poverty rate of 7% is below the national average. 45% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with arts, entertainment, and food service as the leading industry. The average commute of 25 minutes is near the national average.

Educational attainment is near the national average, with 34% of residents holding a bachelor's degree or higher.

21% of residents lack health insurance, above the national average.

Notable community characteristics include a notable veteran presence at 12% of civilians, above the national average of 7%.

Overall, ZIP code 57745 reflects a community defined by a strong veteran community, high homeownership, and a significant Social Security-dependent population.

1,851

population

385.04

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

57745 ZIP code map

Cities in ZIP code 57745

Below are the cities the US Postal Service accepts for ZIP code 57745. Using any city not on this list may result in mail delivery delays.

City	Status
Hill City	Acceptable
Hill City	Preferred

Nearby ZIP codes

57702 Rapid City (18.5 mi) 57759 Nemo (18.7 mi) 57751 Keystone (18.9 mi) 57754 Lead (19.2 mi) 82715 Four Corners (19.6 mi) 57732 Deadwood (20 mi)

Demographics updated 05/2026

Population
Total population	1,851
Population density	5 / sq mi
State FIPS	46
County FIPS	103

Geography
Land area	385.04 sq mi
Water area	0.56 sq mi
Latitude	43.9973
Longitude	-103.7754
Timezone	Mountain (MT)
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	42.6%	42.3%	41.7%
$50k – $100k	28.0%	33.3%	33.8%
$100k – $200k	27.6%	19.2%	20.1%
Over $200k	1.8%	5.2%	4.4%

Demographics & statistics

1,851

Population

People per sq mi

47.7

Median age

$80,000

Median household income

$33,297

Per capita income

$282,500

Median home value

$917

Median monthly rent

84.2%

Home ownership

6.5%

Poverty rate

0.0%

Unemployment

800

Housing units

33.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

123

5–9

10–14

15–19

20–24

25–34

35–44

103

45–54

133

55–59

107

147

60–64

117

142

65–74

113

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	414	22.4%
18 and over	1,437	77.6%
65 and over	354	19.1%
Median age	47.7 years

Race & ethnicity

White 83.5%

Two or more races 6.3%

American Indian / Alaska Native 3.6%

Hispanic or Latino 2.9%

Other race 2.8%

Asian 0.8%

Group	Count	%
White	1,592	83.5%
Two or more races	121	6.3%
American Indian / Alaska Native	69	3.6%
Hispanic or Latino	55	2.9%
Other race	53	2.8%
Asian	16	0.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.6%	42.3%	41.7%
$50k – $100k	28.0%	33.3%	33.8%
$100k – $200k	27.6%	19.2%	20.1%
Over $200k	1.8%	5.2%	4.4%

Under $10k 2.3%

$10k–$15k 1.4%

$15k–$25k 3.6%

$25k–$35k 15.7%

$35k–$50k 9.9%

$50k–$75k 15.4%

$75k–$100k 16.4%

$100k–$150k 22.3%

$150k–$200k 9.0%

$200k+ 4.1%

Range	% of households
Under $10k	2.3%
$10k–$15k	1.4%
$15k–$25k	3.6%
$25k–$35k	15.7%
$35k–$50k	9.9%
$50k–$75k	15.4%
$75k–$100k	16.4%
$100k–$150k	22.3%
$150k–$200k	9.0%
$200k+	4.1%
Median income	$80,000

Housing

Home values

Under $50k 6.7%

$50k–$100k 0.3%

$100k–$150k 4.6%

$150k–$200k 19.1%

$200k–$300k 22.2%

$300k–$500k 33.2%

$500k–$1M 13.3%

$1M+ 0.5%

Housing overview

Metric	Value
Median home value	$282,500
Median rent / month	$917
Owner occupied	84.2%
Renter occupied	15.8%
Vacant	24.1%
Single-family detached	74.4%
Large apartment buildings	2.6%
Mobile homes	18.5%
Median rooms	5.8
Avg household size (owned)	2.74

Year built

Era	%
2020 or later	1.1%
2010–2019	3.5%
2000–2009	23.2%
1990–1999	19.0%
1980–1989	10.8%
1970–1979	17.8%
1960–1969	3.5%
1950–1959	11.3%
1940–1949	6.5%
1939 or earlier	3.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	6.1%
2 bedrooms	29.2%
3 bedrooms	40.3%
4 bedrooms	18.9%
5+ bedrooms	5.0%

Vehicles per household

Vehicles	% of households
No vehicle	1.0%
1 vehicle	14.9%
2 vehicles	32.6%
3 or more	51.4%

Heating fuel

Fuel type	%
Utility gas	12.0%
Electricity	32.6%
Propane / LP gas	34.6%
Wood	18.8%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	463	67.1%
Cohabiting couple	36	5.2%
Male householder, no spouse	75	10.9%
Female householder, no spouse	116	16.8%
Households with children under 18	166	24.1%
Households with seniors (65+)	255	37.0%
Average household size	2.57

Marital status

Status	Male	Female
Never married	22.9%	14.1%
Married	62.5%	63.3%
Separated	0.0%	1.1%
Widowed	6.9%	16.7%
Divorced	7.7%	4.8%

Education

Less than 9th grade 1.2%

Some HS, no diploma 3.7%

HS graduate 37.8%

Some college, no degree 17.9%

Associate's degree 5.7%

Bachelor's degree 25.6%

Graduate / professional 8.2%

Metric	%
HS diploma or higher	95.1%
Bachelor's or higher	33.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	4	0.9%
Kindergarten	103	23.5%
Elementary school	222	50.6%
High school	42	9.6%
College / grad school	68	15.5%

Employment

Industry of employment

Arts, food & hospitality 19.8%

Retail trade 18.9%

Education & healthcare 17.4%

Construction 10.3%

Finance & real estate 8.6%

Other services 7.5%

Agriculture & mining 5.9%

Transportation & utilities 5.0%

Professional & management 2.7%

Public administration 1.9%

Manufacturing 1.6%

Wholesale trade 0.3%

Information 0.2%

Occupation

Category	%
Management, business & arts	27.1%
Service	25.3%
Sales & office	23.8%
Natural resources & construction	13.5%
Production & transportation	10.2%

Employment type

Type	%
Private sector	82.8%
Government	9.6%
Self-employed	7.4%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	84.6%
Carpool	8.7%
Public transit	0.0%
Walk	1.2%
Work from home	5.4%
Other means	0.1%
Avg commute (minutes)	25.2

Poverty

All people 6.5%

Under 18 years 0.0%

18 and over 8.4%

Married-couple families 2.6%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.2%
Retirement income	34.9%
Supplemental Security	2.2%
Cash public assistance	0.3%
Food stamps / SNAP	3.3%

Health indicators

Condition	%
Obesity	33.0%
High blood pressure	33.9%
High cholesterol	35.2%
Diabetes	9.9%
Heart disease	7.4%
Stroke	3.2%
Asthma	8.7%
Arthritis	27.0%
Kidney disease	3.0%
Pulmonary disease	6.3%
Cancer	7.7%

Behavior / access	%
Smoking	17.4%
Binge drinking	17.6%
No physical activity	22.3%
Less than 7 hrs sleep	26.9%
Depression	15.8%
Fair or poor health	11.9%
Poor mental health	10.1%
Poor physical health	9.1%
No health insurance	12.1%
Visited doctor (checkup)	76.3%
Visited dentist	67.1%
Cholesterol screening	90.4%
Teeth loss	13.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	174	12.1%

Disability	%
Any disability	10.3%
Under 18	0.7%
18–64 years	15.4%
65 and over	5.6%

Health insurance coverage

Type	%
Private insurance	67.9%
Public insurance	24.3%
No insurance	20.6%
Uninsured under 19	22.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,811	97.8%
Spanish	33	1.8%
Other Indo-European	17	0.9%
Asian & Pacific Islander	8	0.4%
Other languages	8	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,814	98.0%
Born in same state	1,814	98.0%
Born in different state	1,206	65.2%
Foreign born	0	0.0%
Naturalized citizen	37	2.0%
Not a US citizen	11	29.7%

Ancestry

Ancestry	Count	%
French	327	17.7%
Polish	185	10%
Italian	132	7.1%

Ancestry	Count	%
English	71	3.8%
Arab	22	1.2%
Dutch	9	0.5%

Technology access

Metric	% of households
Computer access	37.3%
Internet access	90.3%

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

Frequently asked questions about ZIP code 57745

What city is ZIP code 57745 in?

ZIP code 57745 is primarily assigned to Hill City, South Dakota.

What county is ZIP code 57745 in?

ZIP code 57745 falls within Pennington County, South Dakota.

Does ZIP code 57745 have a large retiree population?

45% of households in ZIP code 57745 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 57745 mostly owner-occupied?

84% of occupied units in ZIP code 57745 are owner-occupied, well above the national average.

Does ZIP code 57745 have a large veteran population?

12% of civilians in ZIP code 57745 are veterans, above the national average of ~7%.

What is the population of ZIP code 57745?

ZIP code 57745 has an estimated population of 1,851 residents, with a density of 5 people per square mile.

What timezone is ZIP code 57745 in?

ZIP code 57745 observes the MST timezone.