Trail City ZIP Codes — Corson County, SD

There is one unique ZIP code in Trail City, South Dakota and it is 57657. Area code: 605.

ZIP codes

191.21

sq mi land

2.40

sq mi water

605

area code

Trail City, SD ZIP code map

About Trail City, SD

Trail City is a small and unique community located in Corson County, South Dakota. Known for its serene landscape and rural charm, it offers a peaceful atmosphere away from urban hustle. With its lone ZIP code of 57657, Trail City embodies the essence of small-town life in the heart of South Dakota.

Location & geography

Trail City is situated in the east-central part of South Dakota, nestled within Corson County. Nearby cities include McIntosh approximately 28 miles to the northwest, Lena about 25 miles to the southwest, and Eagle Butte, roughly 34 miles to the south. The city spans a land area of 191.21 square miles with a small water area of 2.40 square miles, giving it a diverse terrain that showcases natural beauty.

Community & economy

The character of Trail City reflects the friendly and welcoming spirit commonly found in small towns across America. Its economy primarily revolves around agriculture, with many residents engaged in farming and ranching, contributing to the local way of life. Daily life in the community includes close-knit social interactions, local events, and a shared commitment to preserving the culture and traditions of the area.

Transportation

Trail City is accessible via a network of highways, including South Dakota Highway 20, which provides connections to nearby towns and cities. The nearest named airports are in McIntosh and Eagle Butte, supporting local transit needs. Public transportation options are limited, making personal vehicles the preferred mode of travel for residents.

History

Trail City was founded as a rural community primarily supported by the agriculture industry. The town has seen growth driven by farming, which remains a significant part of Trail City's identity. Notable events in its history include the annual local fairs that celebrate the agricultural heritage of the region.

Did you know?

A little-known fact about Trail City is that it boasts a vast land area compared to its small population, highlighting its wide-open spaces. Additionally, the region is characterized by its rich Native American history, which influences its cultural fabric.

ZIP codes for Trail City, SD (1)

ZIP code	City	County	Map
57657	Trail City	Corson	View map

Demographics & statistics

218

Population

31.3

Median age

$132,500

Median household income

$30,075

Per capita income

$68,600

Median home value

Median monthly rent

92.9%

Home ownership

13.1%

Poverty rate

17.6%

Unemployment

Housing units

18.1%

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	69	31.7%
18 and over	149	68.3%
65 and over	37	17.0%
Median age	31.3 years

Race & ethnicity

American Indian / Alaska Native 54.5%

White 41.8%

Two or more races 1.8%

Hispanic or Latino 0.9%

Other race 0.9%

Group	Count	%
American Indian / Alaska Native	120	54.5%
White	92	41.8%
Two or more races	4	1.8%
Hispanic or Latino	2	0.9%
Other race	2	0.9%

Household income

$10k–$15k 8.9%

$35k–$50k 7.1%

$75k–$100k 28.6%

$100k–$150k 30.4%

$150k–$200k 25.0%

Range	% of households
$10k–$15k	8.9%
$35k–$50k	7.1%
$75k–$100k	28.6%
$100k–$150k	30.4%
$150k–$200k	25.0%
Median income	$132,500

Housing

Home values

Under $50k 17.3%

$50k–$100k 42.3%

$100k–$150k 9.6%

$200k–$300k 13.5%

$300k–$500k 17.3%

Housing overview

Metric	Value
Median home value	$68,600
Median rent / month	$0
Owner occupied	92.9%
Renter occupied	7.1%
Vacant	20.0%
Single-family detached	85.7%
Large apartment buildings	0.0%
Mobile homes	14.3%
Median rooms	6.0
Avg household size (owned)	4.08

Year built

Era	%
2020 or later	0.0%
2010–2019	15.7%
2000–2009	4.3%
1990–1999	4.3%
1980–1989	10.0%
1970–1979	27.1%
1960–1969	0.0%
1950–1959	2.9%
1940–1949	0.0%
1939 or earlier	35.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	2.9%
2 bedrooms	30.0%
3 bedrooms	32.9%
4 bedrooms	18.6%
5+ bedrooms	15.7%

Vehicles per household

Vehicles	% of households
No vehicle	5.4%
1 vehicle	14.3%
2 vehicles	28.6%
3 or more	51.8%

Heating fuel

Fuel type	%
Electricity	7.1%
Propane / LP gas	92.9%

Households & families

Household type	Count	%
Married-couple family	37	66.1%
Cohabiting couple	7	12.5%
Male householder, no spouse	6	10.7%
Female householder, no spouse	6	10.7%
Households with children under 18	28	50.0%
Households with seniors (65+)	20	35.7%
Average household size	3.89

Marital status

Status	Male	Female
Never married	34.9%	37.8%
Married	60.5%	48.6%
Separated	0.0%	0.0%
Widowed	0.0%	13.5%
Divorced	4.7%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 4.3%

HS graduate 35.5%

Some college, no degree 12.3%

Associate's degree 29.7%

Bachelor's degree 14.5%

Graduate / professional 3.6%

Metric	%
HS diploma or higher	95.7%
Bachelor's or higher	18.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	6	8.7%
Elementary school	41	59.4%
High school	14	20.3%
College / grad school	8	11.6%

Employment

Industry of employment

Agriculture & mining 31.0%

Education & healthcare 29.8%

Retail trade 13.1%

Construction 11.9%

Public administration 6.0%

Manufacturing 4.8%

Finance & real estate 2.4%

Transportation & utilities 1.2%

Occupation

Category	%
Management, business & arts	54.8%
Service	8.3%
Sales & office	11.9%
Natural resources & construction	11.9%
Production & transportation	13.1%

Employment type

Type	%
Private sector	33.3%
Government	48.8%
Self-employed	17.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	48.8%
Carpool	21.4%
Public transit	0.0%
Walk	0.0%
Other means	0.0%
Avg commute (minutes)	19.6

Poverty

All people 13.1%

Under 18 years 14.1%

18 and over 12.8%

Married-couple families 8.1%

Female-led households 0.0%

Income support

Source	% of households
Social Security	41.1%
Retirement income	19.6%
Supplemental Security	5.4%
Cash public assistance	5.4%
Food stamps / SNAP	10.7%

Health indicators

Condition	%
High blood pressure	39.7%
High cholesterol	37.0%
Heart disease	10.4%
Stroke	5.4%
Asthma	10.9%
Arthritis	31.0%
Kidney disease	4.5%
Pulmonary disease	11.1%
Cancer	7.5%

Behavior / access	%
Binge drinking	17.3%
No physical activity	32.1%
Less than 7 hrs sleep	30.1%
Fair or poor health	21.1%
Poor mental health	12.5%
Poor physical health	14.7%
No health insurance	14.5%
Visited doctor (checkup)	76.8%
Visited dentist	56.3%
Cholesterol screening	87.8%
Teeth loss	23.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	2	1.3%

Disability	%
Any disability	9.6%
Under 18	0.0%
18–64 years	9.8%
65 and over	27.0%

Health insurance coverage

Type	%
Private insurance	53.2%
Public insurance	45.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	207	95.0%
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)	218	100.0%
Born in same state	216	99.1%
Born in different state	87	39.9%
Foreign born	2	0.9%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	4	1.8%

Technology access

Metric	% of households
Computer access	25.7%
Internet access	96.4%

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

Frequently asked questions

What ZIP codes does Trail City, SD have?

Trail City, SD has one ZIP code: 57657. Each ZIP code serves a distinct delivery area within the city and surrounding region.