Hecla ZIP Code List — Brown County, SD

There is one unique ZIP code in Hecla, South Dakota and it is 57446. Area code: 605.

ZIP codes

155.45

sq mi land

5.34

sq mi water

605

area code

Hecla, SD ZIP code map

About Hecla, SD

Hecla is a small city located in the state of South Dakota, nestled within the confines of Brown County. With its quiet charm and rural setting, it offers a slice of life in the heart of the Great Plains. Hecla is characterized by its friendly community and scenic landscapes, making it an inviting place for visitors and residents alike.

Location & geography

Hecla is situated in the northeastern part of South Dakota, providing residents with a peaceful rural environment. The city is approximately 30 miles southwest of the larger city of Aberdeen and about 50 miles north of the town of Huron. Covering a land area of 155.45 square miles and a water area of 5.34 square miles, the terrain is predominantly flat with lush fields and small water bodies.

Community & economy

Hecla has a tight-knit community that values tradition and camaraderie among its residents. The city's economy is primarily supported by agriculture and local businesses, contributing to a daily life steeped in farming and community events. The character of Hecla is enhanced by friendly gatherings and cultural celebrations, making it a vibrant rural hub.

Transportation

Hecla is accessible via several highways, including South Dakota Highway 10, which connects the city to nearby towns and cities. The nearest major airport is Aberdeen Regional Airport, located approximately 30 miles away, which offers commercial flights and services. While public transportation options are limited, residents often rely on personal vehicles for local travel.

History

Hecla was founded in the late 19th century and has a rich history tied to the agricultural development of the region. Key industries have historically included farming and livestock, driving the local economy and shaping the community's identity. Notable events in Hecla's history reflect its resilience and adaptability, which are hallmarks of small-town life.

Did you know?

A surprising fact about Hecla is that the name 'Hecla' is derived from a volcanic mountain in Iceland, which aligns with the city's unique identity. Additionally, despite its small size, Hecla boasts a strong commitment to preserving its local culture and heritage.

ZIP codes for Hecla, SD (1)

ZIP code	City	County	Map
57446	Hecla	Brown	View map

Demographics & statistics

628

Population

37.9

Median age

$61,786

Median household income

$22,560

Per capita income

Median home value

Median monthly rent

98.3%

Home ownership

8.0%

Poverty rate

0.0%

Unemployment

388

Housing units

12.8%

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	225	35.8%
18 and over	403	64.2%
65 and over	132	21.0%
Median age	37.9 years

Race & ethnicity

White 94.3%

Asian 3.5%

Hispanic or Latino 1.1%

Other race 1.1%

Group	Count	%
White	599	94.3%
Asian	22	3.5%
Hispanic or Latino	7	1.1%
Other race	7	1.1%

Household income

Under $10k 3.8%

$10k–$15k 5.9%

$15k–$25k 16.9%

$25k–$35k 3.0%

$35k–$50k 10.6%

$50k–$75k 19.1%

$75k–$100k 7.6%

$100k–$150k 32.6%

$150k–$200k 0.4%

Range	% of households
Under $10k	3.8%
$10k–$15k	5.9%
$15k–$25k	16.9%
$25k–$35k	3.0%
$35k–$50k	10.6%
$50k–$75k	19.1%
$75k–$100k	7.6%
$100k–$150k	32.6%
$150k–$200k	0.4%
Median income	$61,786

Housing

Home values

Under $50k 35.8%

$50k–$100k 23.7%

$100k–$150k 1.3%

$150k–$200k 0.9%

$200k–$300k 8.6%

$300k–$500k 6.0%

$500k–$1M 23.7%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	98.3%
Renter occupied	1.7%
Vacant	39.8%
Single-family detached	90.8%
Large apartment buildings	0.0%
Mobile homes	4.8%
Median rooms	5.9
Avg household size (owned)	2.66

Year built

Era	%
2020 or later	0.0%
2010–2019	18.4%
2000–2009	0.5%
1990–1999	0.5%
1980–1989	13.0%
1970–1979	5.6%
1960–1969	16.1%
1950–1959	4.6%
1940–1949	0.8%
1939 or earlier	40.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.1%
2 bedrooms	43.6%
3 bedrooms	27.6%
4 bedrooms	6.9%
5+ bedrooms	18.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	17.8%
2 vehicles	57.6%
3 or more	24.6%

Heating fuel

Fuel type	%
Electricity	38.6%
Propane / LP gas	49.6%
Fuel oil	5.5%
Wood	0.4%
No fuel used	5.9%

Households & families

Household type	Count	%
Married-couple family	144	61.0%
Cohabiting couple	1	0.4%
Male householder, no spouse	25	10.6%
Female householder, no spouse	66	28.0%
Households with children under 18	89	37.7%
Households with seniors (65+)	110	46.6%
Average household size	2.66

Marital status

Status	Male	Female
Never married	4.6%	7.4%
Married	85.1%	62.8%
Separated	0.0%	0.0%
Widowed	1.1%	5.6%
Divorced	9.2%	24.2%

Education

Less than 9th grade 4.0%

Some HS, no diploma 4.3%

HS graduate 25.7%

Some college, no degree 20.2%

Associate's degree 33.0%

Bachelor's degree 12.1%

Graduate / professional 0.8%

Metric	%
HS diploma or higher	91.7%
Bachelor's or higher	12.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	39	27.1%
Kindergarten	0	0.0%
Elementary school	103	71.5%
High school	2	1.4%
College / grad school	0	0.0%

Employment

Industry of employment

Agriculture & mining 42.7%

Education & healthcare 18.1%

Wholesale trade 12.2%

Other services 8.3%

Retail trade 5.6%

Arts, food & hospitality 4.2%

Transportation & utilities 3.8%

Manufacturing 1.7%

Public administration 1.7%

Construction 0.7%

Finance & real estate 0.7%

Professional & management 0.3%

Occupation

Category	%
Management, business & arts	47.2%
Service	13.2%
Sales & office	29.5%
Natural resources & construction	5.6%
Production & transportation	4.5%

Employment type

Type	%
Private sector	46.2%
Government	5.9%
Self-employed	43.1%
Unpaid family workers	4.9%

Commute

Method	%
Drive alone	48.2%
Carpool	16.1%
Public transit	0.0%
Walk	16.4%
Other means	0.7%
Avg commute (minutes)	32.6

Poverty

All people 8.0%

Under 18 years 7.1%

18 and over 8.4%

Married-couple families 6.3%

Female-led households 0.0%

Income support

Source	% of households
Social Security	24.2%
Retirement income	41.5%
Supplemental Security	0.0%
Cash public assistance	0.4%
Food stamps / SNAP	3.0%

Health indicators

Condition	%
High blood pressure	40.4%
High cholesterol	38.5%
Heart disease	9.2%
Stroke	3.8%
Asthma	7.7%
Arthritis	32.1%
Kidney disease	3.6%
Pulmonary disease	6.7%
Cancer	10.1%

Behavior / access	%
Binge drinking	16.1%
No physical activity	24.7%
Less than 7 hrs sleep	27.2%
Fair or poor health	11.7%
Poor mental health	8.7%
Poor physical health	9.2%
No health insurance	10.3%
Visited doctor (checkup)	79.4%
Visited dentist	70.8%
Cholesterol screening	93.0%
Teeth loss	12.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	18	4.5%

Disability	%
Any disability	7.2%
Under 18	0.0%
18–64 years	4.4%
65 and over	25.0%

Health insurance coverage

Type	%
Private insurance	73.1%
Public insurance	33.0%
Uninsured under 19	0.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	547	87.1%
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)	618	98.4%
Born in same state	618	98.4%
Born in different state	504	80.3%
Foreign born	0	0.0%
Naturalized citizen	10	1.6%
Not a US citizen	10	100.0%

Ancestry

Ancestry	Count	%
Italian	249	39.6%
Polish	41	6.5%

Ancestry	Count	%
French	21	3.3%
Arab	13	2.1%

Technology access

Metric	% of households
Computer access	37.6%
Internet access	93.2%

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

Frequently asked questions

What is the ZIP code for Hecla, SD?

Hecla, SD has one ZIP code: 57446.

What is the main ZIP code for Hecla, SD?

The primary ZIP code for Hecla, SD is 57446. The city uses area code 605 for phone service.

What county is Hecla, SD in?

Hecla is located in Brown County, South Dakota.

How many ZIP codes are in Hecla, SD?

Hecla, SD has 1 ZIP code.

What is the ZIP code for downtown Hecla, South Dakota?

Downtown Hecla is located in ZIP code 57446, which serves as the primary postal code for the city's central business district.

What ZIP code should I use when mailing correspondence to businesses in Hecla, SD?

All mail to Hecla businesses and residents should be addressed to ZIP code 57446, as this is the only ZIP code serving the entire city in Brown County.