US ZIP Codes → Cities by ZIP Code → 57231

ZIP Code 57231

ZIP Code	57231
City	DE SMET
State	SD
Type	STANDARD
Post offices count	1 (see all)
Total population	1,800 (see all)

Cities in ZIP Code 57231

Primary city: DE SMET, SD

Post offices

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Census data for ZIP Code 57231

Demographic and housing estimates in ZIP Code 57231

Total population
Total population	1,800
Male	934
Female	866

Population by age
Total population	1,800
Under 5 years	159
5 to 9 years	129
10 to 14 years	108
15 to 19 years	77
20 to 24 years	61
25 to 34 years	174
35 to 44 years	204
45 to 54 years	142
55 to 59 years	86
60 to 64 years	182
65 to 74 years	226
75 to 84 years	131
85 years and over	121
Median age (years)	44.3
Under 18 years	453
16 years and over	1,367
18 years and over	1,347
21 years and over	1,318
62 years and over	577
65 years and over	478

Population by race
Total population	1,800
One race	1,775
White	1,767
Black or African American	0
American Indian and Alaska Native	8
Asian	0
Native Hawaiian and Other Pacific Islander	0
Some other race	0
Two or more races	25

Citizen, voting age population
Citizen, VOTING AGE 18 and over population	1,344
Male Citizen, VOTING AGE 18 and over population	664
Female Citizen, VOTING AGE 18 and over population	680

Social characteristics in ZIP Code 57231

Households by type
Total households	681
Family households (families)	419
Married-couple family	28
Male householder, no wife present, family	96
Female householder, no husband present, family	93
Nonfamily households	138
Average household size	291
Average family size	2.58

Economic characteristics in ZIP Code 57231

Income and benefits (in 2021 inflation-adjusted dollars)
Total households	681
Less than $10,000	24
$10,000 to $14,999	17
$15,000 to $24,999	39
$25,000 to $34,999	43
$35,000 to $49,999	122
$50,000 to $74,999	104
$75,000 to $99,999	163
$100,000 to $149,999	106
$150,000 to $199,999	31
$200,000 or more	32
Median household income (dollars)	72,639

Housing characteristics in ZIP Code 57231

Housing occupancy
Total housing units	853
Occupied housing units	681
Vacant housing units	172

Units in structure
Total housing units	853
1-unit, detached	682
1-unit, attached	7
2 units	0
3 or 4 units	44
5 to 9 units	8
10 to 19 units	3
20 or more units	5
Mobile home	104
Boat, RV, van, etc.	0

Year structure built
Total housing units	853
Built 2014 or later	0
Built 2010 to 2013	38
Built 2000 to 2009	64
Built 1990 to 1999	96
Built 1980 to 1989	37
Built 1970 to 1979	129
Built 1960 to 1969	67
Built 1950 to 1959	127
Built 1940 to 1949	46
Built 1939 or earlier	249

Rooms
Total housing units	853
1 room	0
2 rooms	0
3 rooms	24
4 rooms	91
5 rooms	169
6 rooms	155
7 rooms	123
8 rooms	134
9 rooms or more	157
Median rooms	6.4

Bedrooms
Total housing units	853
No bedroom	0
1 bedroom	24
2 bedrooms	196
3 bedrooms	401
4 bedrooms	151
5 or more bedrooms	81

Housing tenure
Occupied housing units	681
Owner-occupied	557
Renter-occupied	124
Average household size of owner-occupied unit	2.78
Average household size of renter-occupied unit	1.70

Year householder moved into unit
Occupied housing units	681
Moved in 2017 or later	27
Moved in 2015 to 2016	123
Moved in 2010 to 2014	139
Moved in 2000 to 2009	116
Moved in 1990 to 1999	98
Moved in 1989 and earlier	178

Value
Owner-occupied units	557
Less than $50,000	43
$50,000 to $99,999	126
$100,000 to $149,999	94
$150,000 to $199,999	74
$200,000 to $299,999	116
$300,000 to $499,999	63
$500,000 to $999,999	27
$1,000,000 or more	14
Median (dollars)	157,600

Mortgage status
Owner-occupied units	557
Housing units with a mortgage	244
Housing units without a mortgage	313

Gross rent
Occupied units paying rent	78
Less than $500	27
$500 to $999	39
$1,000 to $1,499	12
$1,500 to $1,999	0
$2,000 to $2,499	0
$2,500 to $2,999	0
$3,000 or more	0
Median (dollars)	688
No rent paid	46

Data is based on 2021 Census

Other ZIP Codes

57225 57226 572275723157232 57233 57234

ZIP Code 57231

Cities in ZIP Code 57231

Post offices

DE SMET — Post Office™

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Map

Census data for ZIP Code 57231

Demographic and housing estimates in ZIP Code 57231

Social characteristics in ZIP Code 57231

Economic characteristics in ZIP Code 57231

Housing characteristics in ZIP Code 57231

Other ZIP Codes