Tyndall ZIP Code List — Bon Homme County, SD

There is one unique ZIP code in Tyndall, South Dakota and it is 57066. Area code: 605.

ZIP codes

114.20

sq mi land

0.03

sq mi water

605

area code

Tyndall, SD ZIP code map

About Tyndall, SD

Tyndall is a small city located in South Dakota, known for its friendly community and rural charm. Situated in Bon Homme County, Tyndall offers a peaceful lifestyle with access to beautiful natural landscapes. The city is characterized by its tight-knit community and a variety of local events that bring residents together throughout the year.

Location & geography

Tyndall is strategically located in southeastern South Dakota, making it a convenient point for accessing surrounding areas. Nearby cities include Yankton, which is approximately 32 miles to the northeast, Mitchell around 65 miles to the northwest, and Sioux City about 70 miles to the south. The city covers a land area of 114.20 square miles and has a minimal water area of 0.03 square miles, primarily featuring flat terrain typical of the region.

Community & economy

Tyndall embodies a strong sense of community, where residents often participate in local activities and support each other. The economy is primarily based on agriculture, with local farmers contributing to the agricultural output of Bon Homme County. Daily life in Tyndall is marked by community events, local businesses, and a welcoming atmosphere that reflects the values of small-town living.

Transportation

Transportation in Tyndall is facilitated by U.S. Highway 18, which runs through the city and connects it to nearby regions. The nearest major airport is in Sioux Falls, which is approximately 90 miles north of Tyndall, offering regional air travel options. Local transit options are limited, making personal vehicles the most common mode of transportation for residents.

History

Tyndall was founded in the late 19th century and has a rich history tied to the development of the surrounding agricultural industry. Historically, the city has served as a vital hub for local farmers and businesses in Bon Homme County. Notable events include the establishment of local schools and churches that have fostered community development over the years.

Did you know?

A little-known fact about Tyndall is that it is home to the Bon Homme County Fair, which celebrates local agriculture and brings together families for fun and entertainment every summer. Additionally, Tyndall is known for its historic downtown, which features buildings that reflect the city's heritage and architectural style.

ZIP codes for Tyndall, SD (1)

ZIP code	City	County	Map
57066	Tyndall	Bon Homme	View map

Demographics & statistics

1,294

Population

56.0

Median age

$48,264

Median household income

$29,240

Per capita income

$103,800

Median home value

$725

Median monthly rent

77.8%

Home ownership

9.3%

Poverty rate

2.3%

Unemployment

571

Housing units

26.5%

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

119

65–74

110

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	245	18.9%
18 and over	1,049	81.1%
65 and over	446	34.5%
Median age	56.0 years

Race & ethnicity

White 96.4%

American Indian / Alaska Native 1.7%

Two or more races 0.8%

Black or African American 0.6%

Hispanic or Latino 0.3%

Asian 0.2%

Group	Count	%
White	1,251	96.4%
American Indian / Alaska Native	22	1.7%
Two or more races	10	0.8%
Black or African American	8	0.6%
Hispanic or Latino	4	0.3%
Asian	3	0.2%

Household income

Under $10k 6.7%

$10k–$15k 7.4%

$15k–$25k 3.1%

$25k–$35k 19.0%

$35k–$50k 16.1%

$50k–$75k 15.2%

$75k–$100k 17.8%

$100k–$150k 9.2%

$150k–$200k 4.1%

$200k+ 1.5%

Range	% of households
Under $10k	6.7%
$10k–$15k	7.4%
$15k–$25k	3.1%
$25k–$35k	19.0%
$35k–$50k	16.1%
$50k–$75k	15.2%
$75k–$100k	17.8%
$100k–$150k	9.2%
$150k–$200k	4.1%
$200k+	1.5%
Median income	$48,264

Housing

Home values

Under $50k 24.2%

$50k–$100k 22.0%

$100k–$150k 27.0%

$150k–$200k 3.7%

$200k–$300k 14.9%

$300k–$500k 3.1%

$500k–$1M 0.4%

$1M+ 4.6%

Housing overview

Metric	Value
Median home value	$103,800
Median rent / month	$725
Owner occupied	77.8%
Renter occupied	22.2%
Vacant	16.5%
Single-family detached	83.0%
Large apartment buildings	1.1%
Mobile homes	4.9%
Median rooms	6.1
Avg household size (owned)	2.13

Year built

Era	%
2020 or later	0.0%
2010–2019	3.3%
2000–2009	1.7%
1990–1999	6.3%
1980–1989	7.4%
1970–1979	13.8%
1960–1969	5.7%
1950–1959	13.4%
1940–1949	9.8%
1939 or earlier	38.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	11.0%
2 bedrooms	36.5%
3 bedrooms	31.2%
4 bedrooms	10.0%
5+ bedrooms	11.3%

Vehicles per household

Vehicles	% of households
No vehicle	4.8%
1 vehicle	18.3%
2 vehicles	27.7%
3 or more	49.2%

Heating fuel

Fuel type	%
Utility gas	4.6%
Electricity	46.5%
Propane / LP gas	39.3%
Fuel oil	6.8%

Households & families

Household type	Count	%
Married-couple family	312	53.3%
Cohabiting couple	11	1.9%
Male householder, no spouse	138	23.6%
Female householder, no spouse	124	21.2%
Households with children under 18	107	18.3%
Households with seniors (65+)	275	47.0%
Average household size	2.09

Marital status

Status	Male	Female
Never married	19.0%	4.6%
Married	60.9%	62.6%
Separated	2.4%	1.5%
Widowed	4.2%	21.6%
Divorced	13.5%	9.7%

Education

Less than 9th grade 5.1%

Some HS, no diploma 4.3%

HS graduate 34.2%

Some college, no degree 16.9%

Associate's degree 13.0%

Bachelor's degree 18.4%

Graduate / professional 8.1%

Metric	%
HS diploma or higher	90.6%
Bachelor's or higher	26.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	5	2.4%
Kindergarten	15	7.1%
Elementary school	139	65.9%
High school	38	18.0%
College / grad school	14	6.6%

Employment

Industry of employment

Education & healthcare 35.3%

Retail trade 10.4%

Manufacturing 10.0%

Public administration 9.0%

Finance & real estate 7.5%

Transportation & utilities 5.9%

Agriculture & mining 5.8%

Arts, food & hospitality 4.4%

Professional & management 4.2%

Wholesale trade 3.9%

Construction 2.9%

Other services 0.5%

Information 0.2%

Occupation

Category	%
Management, business & arts	38.2%
Service	19.5%
Sales & office	16.8%
Natural resources & construction	12.2%
Production & transportation	13.2%

Employment type

Type	%
Private sector	69.1%
Government	25.1%
Self-employed	5.1%
Unpaid family workers	0.7%

Commute

Method	%
Drive alone	82.5%
Carpool	6.2%
Public transit	1.4%
Walk	4.8%
Other means	1.2%
Avg commute (minutes)	17.7

Poverty

All people 9.3%

Under 18 years 5.3%

18 and over 10.4%

Married-couple families 3.2%

Female-led households 0.0%

Income support

Source	% of households
Social Security	48.9%
Retirement income	27.4%
Supplemental Security	8.7%
Cash public assistance	0.5%
Food stamps / SNAP	3.1%

Health indicators

Condition	%
High blood pressure	37.4%
High cholesterol	34.1%
Heart disease	9.6%
Stroke	4.4%
Asthma	9.0%
Arthritis	30.5%
Kidney disease	4.0%
Pulmonary disease	8.2%
Cancer	9.5%

Behavior / access	%
Binge drinking	16.6%
No physical activity	26.9%
Less than 7 hrs sleep	28.1%
Fair or poor health	14.6%
Poor mental health	10.2%
Poor physical health	10.9%
No health insurance	12.4%
Visited doctor (checkup)	77.5%
Visited dentist	62.6%
Cholesterol screening	90.8%
Teeth loss	16.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	166	15.9%

Disability	%
Any disability	17.0%
Under 18	3.3%
18–64 years	12.3%
65 and over	33.3%

Health insurance coverage

Type	%
Private insurance	77.0%
Public insurance	40.6%
Uninsured under 19	18.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,237	95.6%
Spanish	5	0.4%
Other Indo-European	0	0.0%
Asian & Pacific Islander	5	0.4%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,286	99.4%
Born in same state	1,282	99.1%
Born in different state	1,073	82.9%
Foreign born	4	0.3%
Naturalized citizen	8	0.6%
Not a US citizen	8	100.0%

Ancestry

Ancestry	Count	%
Italian	140	10.8%
French	111	8.6%
English	63	4.9%
Polish	28	2.2%

Ancestry	Count	%
Arab	17	1.3%
Dutch	16	1.2%
Irish	2	0.2%

Technology access

Metric	% of households
Computer access	45.2%
Internet access	79.0%

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

Frequently asked questions

What is the ZIP code for Tyndall, SD?

Tyndall, SD has one ZIP code: 57066.

What is the main ZIP code for Tyndall, SD?

The primary ZIP code for Tyndall, SD is 57066. The city uses area code 605 for phone service.

What county is Tyndall, SD in?

Tyndall is located in Bon Homme County, South Dakota.

How many ZIP codes are in Tyndall, SD?

Tyndall, SD has 1 ZIP code.

What ZIP code should I use to mail packages to businesses in downtown Tyndall, South Dakota?

Downtown Tyndall businesses use the ZIP code 57066, which serves the entire city of Tyndall in Bon Homme County.

If I'm sending mail to a residence in Tyndall, SD near the Missouri River area, what ZIP code applies?

All addresses in Tyndall, including those near the Missouri River, use the ZIP code 57066 since it covers the complete city.