57538 ZIP Code — Herrick, SD

Gregory County, South Dakota

ZIP code 57538 is located in Herrick, South Dakota, within Gregory County. It covers approximately 122.82 square miles and serves a population of 258 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57538

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Owner-occupancy is high at 87%, well above the national average.

The gap between median ($44,167) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average. 44% 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 16 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

Overall, ZIP code 57538 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

258

population

122.82

sq mi land

Standard

ZIP type

Central (CT)

timezone

57538 ZIP code map

Cities in ZIP code 57538

Below are the cities the US Postal Service accepts for ZIP code 57538. Using any city not on this list may result in mail delivery delays.

City	Status
Herrick	Preferred

Nearby ZIP codes

57317 Bonesteel (9.9 mi) 57523 Burke (11 mi) 68755 Naper (15.5 mi)

Demographics updated 05/2026

Population
Total population	258
Population density	2 / sq mi
State FIPS	46
County FIPS	053

Geography
Land area	122.82 sq mi
Water area	0.20 sq mi
Latitude	43.0839
Longitude	-99.2374
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	52.7%	53.1%	41.7%
$50k – $100k	35.2%	30.6%	33.8%
$100k – $200k	5.5%	13.7%	20.1%
Over $200k	6.6%	2.6%	4.4%

Demographics & statistics

258

Population

People per sq mi

44.2

Median age

$44,167

Median household income

$60,097

Per capita income

Median home value

Median monthly rent

86.7%

Home ownership

5.4%

Poverty rate

0.0%

Unemployment

166

Housing units

11.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

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	52	20.2%
18 and over	206	79.8%
65 and over	67	26.0%
Median age	44.2 years

Race & ethnicity

White 91.5%

American Indian / Alaska Native 8.5%

Group	Count	%
White	236	91.5%
American Indian / Alaska Native	22	8.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	52.7%	53.1%	41.7%
$50k – $100k	35.2%	30.6%	33.8%
$100k – $200k	5.5%	13.7%	20.1%
Over $200k	6.6%	2.6%	4.4%

Under $10k 4.1%

$10k–$15k 3.1%

$15k–$25k 10.2%

$25k–$35k 22.4%

$35k–$50k 17.3%

$50k–$75k 18.4%

$75k–$100k 6.1%

$100k–$150k 10.2%

$150k–$200k 2.0%

$200k+ 6.1%

Range	% of households
Under $10k	4.1%
$10k–$15k	3.1%
$15k–$25k	10.2%
$25k–$35k	22.4%
$35k–$50k	17.3%
$50k–$75k	18.4%
$75k–$100k	6.1%
$100k–$150k	10.2%
$150k–$200k	2.0%
$200k+	6.1%
Median income	$44,167

Housing

Home values

Under $50k 28.2%

$50k–$100k 27.1%

$100k–$150k 4.7%

$150k–$200k 4.7%

$200k–$300k 31.8%

$300k–$500k 3.5%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	86.7%
Renter occupied	13.3%
Vacant	45.3%
Single-family detached	94.4%
Large apartment buildings	0.0%
Mobile homes	5.6%
Median rooms	5.9
Avg household size (owned)	2.72

Year built

Era	%
2020 or later	0.0%
2010–2019	3.4%
2000–2009	3.4%
1990–1999	1.1%
1980–1989	0.0%
1970–1979	7.3%
1960–1969	5.6%
1950–1959	8.4%
1940–1949	4.5%
1939 or earlier	66.5%

Bedrooms

Size	% of units
No bedroom (studio)	3.9%
1 bedroom	1.1%
2 bedrooms	40.8%
3 bedrooms	27.4%
4 bedrooms	12.8%
5+ bedrooms	14.0%

Vehicles per household

Vehicles	% of households
No vehicle	3.1%
1 vehicle	8.2%
2 vehicles	32.7%
3 or more	56.1%

Heating fuel

Fuel type	%
Electricity	33.7%
Propane / LP gas	51.0%
Fuel oil	3.1%
Wood	9.2%

Households & families

Household type	Count	%
Married-couple family	65	66.3%
Cohabiting couple	0	0.0%
Male householder, no spouse	18	18.4%
Female householder, no spouse	15	15.3%
Households with children under 18	22	22.4%
Households with seniors (65+)	42	42.9%
Average household size	2.63

Marital status

Status	Male	Female
Never married	45.5%	25.0%
Married	52.9%	67.4%
Separated	0.0%	0.0%
Widowed	0.0%	7.6%
Divorced	1.7%	0.0%

Education

Less than 9th grade 3.1%

Some HS, no diploma 5.6%

HS graduate 50.0%

Some college, no degree 15.4%

Associate's degree 14.2%

Bachelor's degree 6.8%

Graduate / professional 4.9%

Metric	%
HS diploma or higher	91.4%
Bachelor's or higher	11.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	4	6.8%
Elementary school	30	50.8%
High school	7	11.9%
College / grad school	18	30.5%

Employment

Industry of employment

Transportation & utilities 30.7%

Agriculture & mining 20.4%

Education & healthcare 20.4%

Retail trade 8.8%

Arts, food & hospitality 8.0%

Construction 6.6%

Finance & real estate 2.2%

Professional & management 1.5%

Manufacturing 0.7%

Other services 0.7%

Occupation

Category	%
Management, business & arts	38.7%
Service	12.4%
Sales & office	10.9%
Natural resources & construction	6.6%
Production & transportation	31.4%

Employment type

Type	%
Private sector	35.8%
Government	19.7%
Self-employed	44.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.9%
Carpool	8.1%
Public transit	0.0%
Walk	11.9%
Work from home	8.1%
Other means	0.0%
Avg commute (minutes)	15.9

Poverty

All people 5.4%

Under 18 years 7.8%

18 and over 4.9%

Married-couple families 6.2%

Female-led households 0.0%

Income support

Source	% of households
Social Security	43.9%
Retirement income	15.3%
Supplemental Security	3.1%
Cash public assistance	0.0%
Food stamps / SNAP	10.2%

Health indicators

Condition	%
Obesity	37.1%
High blood pressure	36.1%
High cholesterol	34.1%
Diabetes	11.9%
Heart disease	8.8%
Stroke	4.1%
Asthma	9.5%
Arthritis	27.2%
Kidney disease	3.6%
Pulmonary disease	7.7%
Cancer	8.1%

Behavior / access	%
Smoking	20.5%
Binge drinking	18.1%
No physical activity	26.0%
Less than 7 hrs sleep	29.3%
Depression	15.6%
Fair or poor health	14.4%
Poor mental health	11.0%
Poor physical health	10.7%
No health insurance	12.6%
Visited doctor (checkup)	75.9%
Visited dentist	64.6%
Cholesterol screening	89.5%
Teeth loss	16.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	13	6.3%

Disability	%
Any disability	9.3%
Under 18	0.0%
18–64 years	10.1%
65 and over	14.9%

Health insurance coverage

Type	%
Private insurance	83.7%
Public insurance	38.4%
No insurance	6.2%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	253	98.1%
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)	258	100.0%
Born in same state	258	100.0%
Born in different state	195	75.6%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
French	31	12%
Arab	15	5.8%
English	9	3.5%
Italian	9	3.5%

Ancestry	Count	%
Polish	7	2.7%
Dutch	4	1.6%
Irish	2	0.8%

Technology access

Metric	% of households
Computer access	38.0%
Internet access	92.9%

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

Frequently asked questions about ZIP code 57538

What city is ZIP code 57538 in?

ZIP code 57538 is primarily assigned to Herrick, South Dakota.

What county is ZIP code 57538 in?

ZIP code 57538 falls within Gregory County, South Dakota.

Does ZIP code 57538 have an older population?

26% of residents in ZIP code 57538 are 65 or older, above the national average of ~17%.

Is ZIP code 57538 mostly owner-occupied?

87% of occupied units in ZIP code 57538 are owner-occupied, well above the national average.

How educated is the population of ZIP code 57538?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 57538 have a large retiree population?

44% of households in ZIP code 57538 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 57538 in?

ZIP code 57538 observes the CST timezone.