57021 ZIP Code — Davis, SD

Turner County, South Dakota

ZIP code 57021 is located in Davis, South Dakota, within Turner County. It covers approximately 30.03 square miles and serves a population of 437 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57021

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 86%, well above the national average.

The gap between median ($73,125) 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.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 35 minutes is near the national average.

Educational attainment is high — 51% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 57021 reflects a community defined by a highly educated population and high homeownership.

437

population

30.03

sq mi land

Standard

ZIP type

Central (CT)

timezone

57021 ZIP code map

Cities in ZIP code 57021

Below are the cities the US Postal Service accepts for ZIP code 57021. Using any city not on this list may result in mail delivery delays.

City	Status
Davis	Preferred

Nearby ZIP codes

57039 Lennox (6.5 mi) 57036 Hurley (8 mi) 57015 Chancellor (10.3 mi) 57077 Worthing (11.5 mi) 57053 Parker (12.2 mi) 57070 Viborg (12.5 mi) 57014 Centerville (12.7 mi) 57064 Tea (14.4 mi) 57004 Beresford (17.1 mi) 57043 Marion (17.1 mi) 57032 Harrisburg (17.5 mi) 57106 Sioux Falls (17.7 mi)

Demographics updated 05/2026

Population
Total population	437
Population density	15 / sq mi
State FIPS	46
County FIPS	125

Geography
Land area	30.03 sq mi
Water area	0.06 sq mi
Latitude	43.2725
Longitude	-96.9835
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	28.0%	38.5%	41.7%
$50k – $100k	50.0%	37.6%	33.8%
$100k – $200k	17.1%	20.4%	20.1%
Over $200k	4.9%	3.5%	4.4%

Demographics & statistics

437

Population

People per sq mi

45.2

Median age

$73,125

Median household income

$38,565

Per capita income

Median home value

Median monthly rent

86.0%

Home ownership

4.8%

Poverty rate

4.0%

Unemployment

141

Housing units

51.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	112	25.6%
18 and over	325	74.4%
65 and over	52	11.9%
Median age	45.2 years

Race & ethnicity

White 88.6%

Asian 11%

Two or more races 0.5%

Group	Count	%
White	387	88.6%
Asian	48	11%
Two or more races	2	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	28.0%	38.5%	41.7%
$50k – $100k	50.0%	37.6%	33.8%
$100k – $200k	17.1%	20.4%	20.1%
Over $200k	4.9%	3.5%	4.4%

$10k–$15k 2.5%

$15k–$25k 6.4%

$25k–$35k 7.0%

$35k–$50k 5.7%

$50k–$75k 29.3%

$75k–$100k 17.2%

$100k–$150k 24.2%

$150k–$200k 1.9%

$200k+ 5.7%

Range	% of households
$10k–$15k	2.5%
$15k–$25k	6.4%
$25k–$35k	7.0%
$35k–$50k	5.7%
$50k–$75k	29.3%
$75k–$100k	17.2%
$100k–$150k	24.2%
$150k–$200k	1.9%
$200k+	5.7%
Median income	$73,125

Housing

Home values

Under $50k 37.8%

$50k–$100k 15.6%

$100k–$150k 0.7%

$150k–$200k 5.2%

$200k–$300k 2.2%

$300k–$500k 26.7%

$500k–$1M 11.9%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	86.0%
Renter occupied	14.0%
Vacant	3.7%
Single-family detached	95.7%
Large apartment buildings	0.0%
Mobile homes	4.3%
Median rooms	7.5
Avg household size (owned)	2.82

Year built

Era	%
2020 or later	0.0%
2010–2019	4.9%
2000–2009	10.4%
1990–1999	14.7%
1980–1989	3.7%
1970–1979	12.3%
1960–1969	1.8%
1950–1959	3.1%
1940–1949	0.0%
1939 or earlier	49.1%

Bedrooms

Size	% of units
No bedroom (studio)	1.8%
1 bedroom	1.8%
2 bedrooms	15.3%
3 bedrooms	57.1%
4 bedrooms	17.8%
5+ bedrooms	6.1%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	5.1%
2 vehicles	44.6%
3 or more	50.3%

Heating fuel

Fuel type	%
Electricity	64.3%
Propane / LP gas	29.9%
Fuel oil	1.9%

Households & families

Household type	Count	%
Married-couple family	123	78.3%
Cohabiting couple	1	0.6%
Male householder, no spouse	19	12.1%
Female householder, no spouse	14	8.9%
Households with children under 18	103	65.6%
Households with seniors (65+)	38	24.2%
Average household size	2.78

Marital status

Status	Male	Female
Never married	14.7%	5.4%
Married	77.2%	85.5%
Separated	0.0%	0.0%
Widowed	0.0%	5.4%
Divorced	8.2%	3.6%

Education

Less than 9th grade 2.8%

Some HS, no diploma 1.2%

HS graduate 20.6%

Some college, no degree 14.2%

Associate's degree 10.2%

Bachelor's degree 49.8%

Graduate / professional 1.2%

Metric	%
HS diploma or higher	96.0%
Bachelor's or higher	51.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	20	22.7%
Kindergarten	4	4.5%
Elementary school	37	42.0%
High school	27	30.7%
College / grad school	0	0.0%

Employment

Industry of employment

Agriculture & mining 26.3%

Other services 20.2%

Construction 14.5%

Manufacturing 11.5%

Education & healthcare 9.5%

Finance & real estate 7.6%

Transportation & utilities 6.5%

Retail trade 1.9%

Professional & management 1.9%

Occupation

Category	%
Management, business & arts	53.4%
Service	7.6%
Sales & office	22.9%
Natural resources & construction	9.5%
Production & transportation	6.5%

Employment type

Type	%
Private sector	66.0%
Government	24.4%
Self-employed	9.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.5%
Carpool	13.0%
Public transit	0.8%
Walk	3.4%
Work from home	5.3%
Other means	0.0%
Avg commute (minutes)	34.5

Poverty

All people 4.8%

Under 18 years 8.3%

18 and over 3.7%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	17.2%
Retirement income	17.2%
Supplemental Security	0.0%
Cash public assistance	2.5%
Food stamps / SNAP	0.6%

Health indicators

Condition	%
Obesity	34.8%
High blood pressure	32.0%
High cholesterol	32.5%
Diabetes	9.7%
Heart disease	7.0%
Stroke	3.1%
Asthma	8.9%
Arthritis	25.2%
Kidney disease	3.0%
Pulmonary disease	6.5%
Cancer	7.2%

Behavior / access	%
Smoking	19.2%
Binge drinking	19.4%
No physical activity	23.8%
Less than 7 hrs sleep	29.2%
Depression	16.2%
Fair or poor health	11.9%
Poor mental health	10.6%
Poor physical health	9.5%
No health insurance	11.3%
Visited doctor (checkup)	74.7%
Visited dentist	68.0%
Cholesterol screening	89.7%
Teeth loss	12.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	5	1.5%

Disability	%
Any disability	7.8%
Under 18	7.1%
18–64 years	3.7%
65 and over	30.8%

Health insurance coverage

Type	%
Private insurance	83.8%
Public insurance	30.4%
No insurance	2.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	409	93.6%
Spanish	39	9.5%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	39	9.5%

Place of birth & citizenship

Origin	Count	%
Native born (US)	389	89.0%
Born in same state	389	89.0%
Born in different state	311	71.2%
Foreign born	0	0.0%
Naturalized citizen	48	11.0%
Not a US citizen	13	27.1%

Ancestry

Ancestry	Count	%
English	88	20.1%
Italian	43	9.8%
Arab	32	7.3%

Ancestry	Count	%
Polish	27	6.2%
French	6	1.4%
Dutch	2	0.5%

Technology access

Metric	% of households
Computer access	35.9%
Internet access	93.0%

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

Frequently asked questions about ZIP code 57021

What city is ZIP code 57021 in?

ZIP code 57021 is primarily assigned to Davis, South Dakota.

What county is ZIP code 57021 in?

ZIP code 57021 falls within Turner County, South Dakota.

Is ZIP code 57021 mostly owner-occupied?

86% of occupied units in ZIP code 57021 are owner-occupied, well above the national average.

How educated is the population of ZIP code 57021?

51% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the population of ZIP code 57021?

ZIP code 57021 has an estimated population of 437 residents, with a density of 15 people per square mile.

What is the median household income in ZIP code 57021?

The median household income in ZIP code 57021 is $73,125, below the national median of ~$75,000.

What timezone is ZIP code 57021 in?

ZIP code 57021 observes the CST timezone.