57446 ZIP Code — Hecla, SD

Brown County, South Dakota

ZIP code 57446 is located in Hecla, South Dakota, within Brown County. It covers approximately 155.45 square miles and serves a population of 628 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57446

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 98%, well above the national average.

Median household income is $61,786.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 33 minutes is near the national average.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 57446 reflects a community defined by a trades-oriented workforce and high homeownership.

628

population

155.45

sq mi land

Standard

ZIP type

Central (CT)

timezone

57446 ZIP code map

Cities in ZIP code 57446

Below are the cities the US Postal Service accepts for ZIP code 57446. Using any city not on this list may result in mail delivery delays.

City	Status
Hecla	Preferred

Nearby ZIP codes

57432 Claremont (12.4 mi) 57441 Frederick (15.6 mi) 57433 Columbia (16.7 mi) 58474 Oakes (17.5 mi)

Demographics updated 05/2026

Population
Total population	628
Population density	4 / sq mi
State FIPS	46
County FIPS	013

Geography
Land area	155.45 sq mi
Water area	5.34 sq mi
Latitude	45.8568
Longitude	-98.1655
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	38.6%	39.9%	41.7%
$50k – $100k	46.1%	34.8%	33.8%
$100k – $200k	14.6%	20.4%	20.1%
Over $200k	0.7%	4.9%	4.4%

Demographics & statistics

628

Population

People per sq mi

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

Income range	This ZIP	County avg	State avg
Under $50k	38.6%	39.9%	41.7%
$50k – $100k	46.1%	34.8%	33.8%
$100k – $200k	14.6%	20.4%	20.1%
Over $200k	0.7%	4.9%	4.4%

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%
Work from home	18.6%
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	%
Obesity	32.0%
High blood pressure	40.4%
High cholesterol	38.5%
Diabetes	11.5%
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	%
Smoking	15.3%
Binge drinking	16.1%
No physical activity	24.7%
Less than 7 hrs sleep	27.2%
Depression	14.1%
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%
No insurance	6.1%
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 about ZIP code 57446

What city is ZIP code 57446 in?

ZIP code 57446 is primarily assigned to Hecla, South Dakota.

What county is ZIP code 57446 in?

ZIP code 57446 falls within Brown County, South Dakota.

Is ZIP code 57446 family-oriented?

36% of residents in ZIP code 57446 are under 18, reflecting a younger, family-oriented community.

Is ZIP code 57446 mostly owner-occupied?

98% of occupied units in ZIP code 57446 are owner-occupied, well above the national average.

How educated is the population of ZIP code 57446?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the population of ZIP code 57446?

ZIP code 57446 has an estimated population of 628 residents, with a density of 4 people per square mile.

What timezone is ZIP code 57446 in?

ZIP code 57446 observes the CST timezone.