Allen ZIP Code List — Bennett County, SD

There is one unique ZIP code in Allen, South Dakota and it is 57714. Area code: 605.

ZIP codes

162.08

sq mi land

0.07

sq mi water

605

area code

Allen, SD ZIP code map

About Allen, SD

Allen, South Dakota, is a small yet charming community located in Bennett County. This rural town is known for its picturesque landscapes and friendly atmosphere, offering visitors a glimpse into the heart of South Dakota's countryside. With a ZIP code of 57714, Allen is a unique destination for those looking to experience the tranquility of a small town.

Location & geography

Allen is situated in the southwestern part of South Dakota, approximately 40 miles southwest of Rapid City and 15 miles northeast of the Nebraska border. The town covers a total land area of 162.08 square miles and includes a minimal water area of 0.07 square miles, giving it a predominantly rugged terrain typical of the Great Plains. The surrounding landscape is marked by rolling hills and open prairies, contributing to the area's natural beauty.

Community & economy

The character of Allen revolves around its close-knit community, where residents enjoy a slower pace of life that is often difficult to find in larger cities. Local industries primarily focus on agriculture and ranching, which are fundamental to the town's economy and heritage. Daily life in Allen is characterized by community events, local gatherings, and an emphasis on supporting one another.

Transportation

Allen is accessible via various highways, including South Dakota Highway 34, which runs nearby and connects to major routes in the region. For travelers, the nearest commercial airport is located in Rapid City, providing convenient access to air travel for residents and visitors alike. Public transportation options are limited, emphasizing the town's rural setting.

History

Allen was established as a small community facilitating the needs of local ranchers and farmers, making its mark in South Dakota's agricultural history. Over the years, the town has remained focused on its agricultural roots, while also welcoming tourists interested in exploring the scenic routes and local culture. Notable events throughout its history include agricultural fairs and community celebrations that highlight the town's traditions.

Did you know?

A little-known fact about Allen is that it has only one ZIP code, 57714, which signifies the town's small size and tight-knit community. The surrounding Bennett County is rich in history and is home to various landmarks significant to Native American heritage.

ZIP codes for Allen, SD (1)

ZIP code	City	County	Map
57714	Allen	Bennett	View map

Demographics & statistics

1,168

Population

20.0

Median age

Median household income

$6,752

Per capita income

$110,300

Median home value

$617

Median monthly rent

21.9%

Home ownership

45.0%

Poverty rate

23.2%

Unemployment

Housing units

0.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

111

10–14

15–19

20–24

104

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	572	49.0%
18 and over	596	51.0%
65 and over	89	7.6%
Median age	20.0 years

Race & ethnicity

American Indian / Alaska Native 91%

Hispanic or Latino 4.5%

Other race 4.5%

Group	Count	%
American Indian / Alaska Native	1,113	91%
Hispanic or Latino	55	4.5%
Other race	55	4.5%

Household income

Under $10k 7.9%

$10k–$15k 15.2%

$15k–$25k 16.3%

$25k–$35k 18.0%

$35k–$50k 5.1%

$50k–$75k 27.5%

$75k–$100k 10.1%

Range	% of households
Under $10k	7.9%
$10k–$15k	15.2%
$15k–$25k	16.3%
$25k–$35k	18.0%
$35k–$50k	5.1%
$50k–$75k	27.5%
$75k–$100k	10.1%
Median income	$0

Housing

Home values

$50k–$100k 25.6%

$100k–$150k 59.0%

$300k–$500k 7.7%

$500k–$1M 7.7%

Housing overview

Metric	Value
Median home value	$110,300
Median rent / month	$617
Owner occupied	21.9%
Renter occupied	78.1%
Vacant	9.6%
Single-family detached	93.9%
Large apartment buildings	0.0%
Mobile homes	3.6%
Median rooms	5.6
Avg household size (owned)	4.56

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	5.6%
1990–1999	21.8%
1980–1989	13.7%
1970–1979	44.7%
1960–1969	4.6%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	9.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	17.3%
3 bedrooms	44.7%
4 bedrooms	19.3%
5+ bedrooms	18.8%

Vehicles per household

Vehicles	% of households
No vehicle	24.2%
1 vehicle	52.2%
2 vehicles	13.5%
3 or more	10.1%

Heating fuel

Fuel type	%
Electricity	24.2%
Propane / LP gas	75.8%

Households & families

Household type	Count	%
Married-couple family	31	17.4%
Cohabiting couple	37	20.8%
Male householder, no spouse	3	1.7%
Female householder, no spouse	107	60.1%
Households with children under 18	92	51.7%
Households with seniors (65+)	73	41.0%
Average household size	6.56

Marital status

Status	Male	Female
Never married	71.9%	68.4%
Married	15.3%	6.8%
Separated	0.0%	0.0%
Widowed	0.0%	14.3%
Divorced	12.9%	10.5%

Education

Less than 9th grade 7.8%

Some HS, no diploma 32.2%

HS graduate 21.9%

Some college, no degree 28.0%

Associate's degree 10.1%

Bachelor's degree 0.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	59.9%
Bachelor's or higher	0.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	38	8.6%
Elementary school	294	66.5%
High school	103	23.3%
College / grad school	7	1.6%

Employment

Industry of employment

Education & healthcare 53.3%

Arts, food & hospitality 18.1%

Retail trade 12.6%

Professional & management 11.1%

Construction 3.5%

Finance & real estate 1.5%

Occupation

Category	%
Management, business & arts	11.6%
Service	47.2%
Sales & office	12.6%
Natural resources & construction	5.0%
Production & transportation	23.6%

Employment type

Type	%
Private sector	41.2%
Government	57.8%
Self-employed	1.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.9%
Carpool	0.0%
Public transit	0.0%
Walk	1.0%
Other means	10.1%
Avg commute (minutes)	9.9

Poverty

All people 45.0%

Under 18 years 48.4%

18 and over 41.8%

Married-couple families 0.0%

Female-led households 68.9%

Income support

Source	% of households
Social Security	41.0%
Retirement income	0.0%
Supplemental Security	29.2%
Cash public assistance	34.8%
Food stamps / SNAP	51.7%

Health indicators

Condition	%
High blood pressure	30.6%
High cholesterol	23.1%
Heart disease	6.7%
Stroke	4.4%
Asthma	13.7%
Arthritis	19.8%
Kidney disease	3.5%
Pulmonary disease	8.4%
Cancer	4.1%

Behavior / access	%
Binge drinking	20.6%
No physical activity	32.1%
Less than 7 hrs sleep	33.7%
Fair or poor health	22.5%
Poor mental health	18.1%
Poor physical health	14.2%
No health insurance	18.8%
Visited doctor (checkup)	71.6%
Visited dentist	48.4%
Cholesterol screening	79.5%
Teeth loss	35.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	16	2.7%

Disability	%
Any disability	11.0%
Under 18	5.4%
18–64 years	9.9%
65 and over	53.9%

Health insurance coverage

Type	%
Private insurance	2.8%
Public insurance	65.4%
Uninsured under 19	18.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,082	92.6%
Spanish	27	2.5%
Other Indo-European	2	0.2%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,168	100.0%
Born in same state	1,168	100.0%
Born in different state	1,036	88.7%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	9	0.8%

Technology access

Metric	% of households
Computer access	15.2%
Internet access	63.5%

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

Frequently asked questions

What is the ZIP code for Allen, SD?

Allen, SD has one ZIP code: 57714.

What is the main ZIP code for Allen, SD?

The primary ZIP code for Allen, SD is 57714. The city uses area code 605 for phone service.

What county is Allen, SD in?

Allen is located in Bennett County, South Dakota.

How many ZIP codes are in Allen, SD?

Allen, SD has 1 ZIP code.

What ZIP code should I use for mail delivery to downtown Allen in Bennett County?

Downtown Allen uses the ZIP code 57714, which serves the entire community in Bennett County, South Dakota.

What is the correct ZIP code for businesses and residents located in Allen, South Dakota?

All addresses in Allen, South Dakota use the single ZIP code 57714, regardless of their specific location within the town.