57054 ZIP Code — Ramona, SD

Lake County, South Dakota

ZIP code 57054 is located in Ramona, South Dakota, within Lake County. It covers approximately 116.22 square miles and serves a population of 584 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 605.

About ZIP code 57054

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $112,500. Owner-occupancy is high at 88%, well above the national average.

Median household income is $85,313. The poverty rate of 2% is below the national average. 46% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with agriculture and mining as the leading industry. The average commute of 19 minutes is near the national average.

College attainment at 20% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 57054 reflects a community defined by high homeownership and a significant Social Security-dependent population.

584

population

116.22

sq mi land

Standard

ZIP type

Central (CT)

timezone

57054 ZIP code map

Cities in ZIP code 57054

Below are the cities the US Postal Service accepts for ZIP code 57054. Using any city not on this list may result in mail delivery delays.

City	Status
Ramona	Preferred

Nearby ZIP codes

57051 Oldham (7.9 mi) 57076 Winfred (10.9 mi) 57050 Nunda (12 mi) 57042 Madison (12.3 mi) 57075 Wentworth (16.2 mi) 57349 Howard (16.7 mi) 57071 Volga (17.4 mi) 57212 Arlington (18.1 mi) 57249 Lake Preston (18.1 mi)

Demographics updated 08/2026

Population
Total population	584
Population density	5 / sq mi
State FIPS	46
County FIPS	079

Geography
Land area	116.22 sq mi
Water area	0.37 sq mi
Latitude	44.1307
Longitude	-97.2498
Timezone	Central (CT)
Area code	605

Total population by age

Gender

Race & ethnicity

Economics updated 08/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	36.6%	34.6%	41.7%
$50k – $100k	25.6%	39.3%	33.8%
$100k – $200k	33.3%	21.7%	20.1%
Over $200k	4.4%	4.4%	4.4%

Demographics & statistics

584

Population

People per sq mi

45.5

Median age

$85,313

Median household income

$48,517

Per capita income

$112,500

Median home value

$700

Median monthly rent

87.8%

Home ownership

2.1%

Poverty rate

0.8%

Unemployment

272

Housing units

20.4%

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	105	18.0%
18 and over	479	82.0%
65 and over	169	28.9%
Median age	45.5 years

Race & ethnicity

White 64.9%

Hispanic or Latino 16.5%

Other race 15.5%

Two or more races 2%

Asian 1.1%

Group	Count	%
White	454	64.9%
Hispanic or Latino	115	16.5%
Other race	108	15.5%
Two or more races	14	2%
Asian	8	1.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	36.6%	34.6%	41.7%
$50k – $100k	25.6%	39.3%	33.8%
$100k – $200k	33.3%	21.7%	20.1%
Over $200k	4.4%	4.4%	4.4%

Under $10k 1.2%

$10k–$15k 3.5%

$15k–$25k 7.1%

$25k–$35k 4.3%

$35k–$50k 14.1%

$50k–$75k 15.3%

$75k–$100k 12.2%

$100k–$150k 17.6%

$150k–$200k 11.4%

$200k+ 13.3%

Range	% of households
Under $10k	1.2%
$10k–$15k	3.5%
$15k–$25k	7.1%
$25k–$35k	4.3%
$35k–$50k	14.1%
$50k–$75k	15.3%
$75k–$100k	12.2%
$100k–$150k	17.6%
$150k–$200k	11.4%
$200k+	13.3%
Median income	$85,313

Housing

Home values

Under $50k 17.0%

$50k–$100k 20.5%

$100k–$150k 31.7%

$150k–$200k 14.7%

$200k–$300k 6.3%

$300k–$500k 6.7%

$500k–$1M 0.9%

$1M+ 2.2%

Housing overview

Metric	Value
Median home value	$112,500
Median rent / month	$700
Owner occupied	87.8%
Renter occupied	12.2%
Vacant	15.8%
Single-family detached	77.2%
Large apartment buildings	0.0%
Mobile homes	0.3%
Median rooms	6.1
Avg household size (owned)	2.12

Year built

Era	%
2020 or later	0.0%
2010–2019	2.3%
2000–2009	3.3%
1990–1999	17.8%
1980–1989	5.9%
1970–1979	10.2%
1960–1969	6.9%
1950–1959	7.3%
1940–1949	9.9%
1939 or earlier	36.3%

Bedrooms

Size	% of units
No bedroom (studio)	7.6%
1 bedroom	10.6%
2 bedrooms	22.4%
3 bedrooms	34.3%
4 bedrooms	20.5%
5+ bedrooms	4.6%

Vehicles per household

Vehicles	% of households
No vehicle	0.4%
1 vehicle	25.9%
2 vehicles	40.8%
3 or more	32.9%

Heating fuel

Fuel type	%
Utility gas	35.7%
Electricity	29.8%
Propane / LP gas	31.4%
Fuel oil	0.4%
No fuel used	2.7%

Households & families

Household type	Count	%
Married-couple family	118	46.3%
Cohabiting couple	2	0.8%
Male householder, no spouse	106	41.6%
Female householder, no spouse	29	11.4%
Households with children under 18	48	18.8%
Households with seniors (65+)	116	45.5%
Average household size	2.29

Marital status

Status	Male	Female
Never married	25.5%	14.4%
Married	57.1%	71.3%
Separated	7.0%	0.0%
Widowed	1.8%	5.7%
Divorced	8.5%	8.6%

Education

Less than 9th grade 11.8%

Some HS, no diploma 3.5%

HS graduate 29.6%

Some college, no degree 22.4%

Associate's degree 12.3%

Bachelor's degree 18.9%

Graduate / professional 1.5%

Metric	%
HS diploma or higher	84.6%
Bachelor's or higher	20.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	3	3.4%
Kindergarten	0	0.0%
Elementary school	47	54.0%
High school	30	34.5%
College / grad school	7	8.0%

Employment

Industry of employment

Agriculture & mining 46.1%

Education & healthcare 16.6%

Transportation & utilities 7.3%

Manufacturing 6.2%

Retail trade 6.2%

Professional & management 5.6%

Wholesale trade 2.8%

Finance & real estate 2.5%

Construction 2.2%

Information 1.4%

Arts, food & hospitality 1.4%

Other services 0.8%

Public administration 0.8%

Occupation

Category	%
Management, business & arts	33.1%
Service	8.4%
Sales & office	9.3%
Natural resources & construction	32.9%
Production & transportation	16.3%

Employment type

Type	%
Private sector	67.7%
Government	13.5%
Self-employed	18.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	70.3%
Carpool	10.8%
Public transit	2.0%
Walk	6.8%
Work from home	10.2%
Other means	0.0%
Avg commute (minutes)	19.2

Poverty

All people 2.1%

Under 18 years 0.0%

18 and over 2.5%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.5%
Retirement income	23.9%
Supplemental Security	1.6%
Cash public assistance	0.0%
Food stamps / SNAP	0.8%

Health indicators

Condition	%
Obesity	31.3%
High blood pressure	31.1%
High cholesterol	31.3%
Diabetes	8.8%
Heart disease	7.3%
Stroke	3.1%
Asthma	8.2%
Arthritis	25.1%
Kidney disease	3.0%
Pulmonary disease	5.5%
Cancer	8.5%

Behavior / access	%
Smoking	14.7%
Binge drinking	19.3%
No physical activity	21.4%
Less than 7 hrs sleep	26.5%
Depression	13.7%
Fair or poor health	10.0%
Poor mental health	9.2%
Poor physical health	8.2%
No health insurance	10.2%
Visited doctor (checkup)	76.0%
Visited dentist	72.4%
Cholesterol screening	91.3%
Teeth loss	11.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	34	7.1%

Disability	%
Any disability	13.9%
Under 18	4.8%
18–64 years	2.3%
65 and over	40.8%

Health insurance coverage

Type	%
Private insurance	85.3%
Public insurance	33.4%
No insurance	4.1%
Uninsured under 19	2.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	556	95.2%
Spanish	78	14.0%
Other Indo-European	78	14.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	468	80.1%
Born in same state	462	79.1%
Born in different state	387	66.3%
Foreign born	6	1.0%
Naturalized citizen	116	19.9%
Not a US citizen	16	13.8%

Ancestry

Ancestry	Count	%
Polish	101	17.3%
Italian	37	6.3%
Dutch	24	4.1%
French	20	3.4%

Ancestry	Count	%
English	11	1.9%
German	6	1%
Arab	5	0.9%

Technology access

Metric	% of households
Computer access	43.7%
Internet access	91.8%

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

Frequently asked questions about ZIP code 57054

What city is ZIP code 57054 in?

ZIP code 57054 is primarily assigned to Ramona, South Dakota.

What county is ZIP code 57054 in?

ZIP code 57054 falls within Lake County, South Dakota.

Does ZIP code 57054 have an older population?

29% of residents in ZIP code 57054 are 65 or older, above the national average of ~17%.

Is ZIP code 57054 mostly owner-occupied?

88% of occupied units in ZIP code 57054 are owner-occupied, well above the national average.

Does ZIP code 57054 have a large retiree population?

46% of households in ZIP code 57054 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 57054?

The median home value in ZIP code 57054 is $112,500.

What timezone is ZIP code 57054 in?

ZIP code 57054 observes the CST timezone.