US ZIP Code
57433

Columbia, SD

Brown County  ·  South Dakota

● Active
👥 384 Population ↑ 4% since 2019
💰 $71,215 Median HH Income
≈ Avg ↑ 11% since 2019
🎂 40.6 Median Age ↓ 33% since 2019
🎓 40.7% College Grads
≈ Avg
📊 0.0% Unemployment
▼ 100% below avg
ZIP Code Details
ZIP Code57433
CityColumbia
StateSouth Dakota (SD)
CountyBrown County
Area Code605
Elevation1,304 ft
Latitude45.638241
Longitude-98.320765
TimezoneChicago (DST)
FIPS46013
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 59.1% (227) Female 40.9% (157) ♀

Race & Ethnicity

White: 99.7%Race
White99.7%

Age Breakdown

Under 5
8%
5–17
19%
18–24
3%
25–44
24%
45–64
20%
65+
10%

Key Indicators

Median Age40.6 yrs ↓ 33% since 2019
Avg Household Size1.99
Below Poverty0.5% ▼ 95% below avg
College Grads40.7% ≈ Avg
Unemployment0.0% ▼ 100% below avg
HS Graduate108 (43.5%)
Some College13 (5.2%)
Associates26 (10.5%)
Bachelors49 (19.8%)
Graduate Degree52 (21%)

Education

HS Grad: 43.5%Some College: 5.2%Associates: 10.5%Bachelors: 19.8%Graduate: 21%Edu
HS Grad43.5%
Some College5.2%
Associates10.5%
Bachelors19.8%
Graduate21.0%
Housing & Income

Housing Tenure

Owner: 95.9%Renter: 4.2%Tenure
Owner95.9%
Renter4.2%

Home Value Distribution

Under $50k
40%
$50k–100k
9%
$100k–150k
6%
$150k–200k
14%
$200k–300k
22%
$300k–500k
1%
Over $500k
9%

Financials

Median HH Income$71,215 ≈ Avg ↑ 11% since 2019
Total Units200
Vacant Units7
Avg HH Size1.99

Income Distribution

Under $25k
1%
$25k–50k
16%
$50k–75k
42%
$75k–100k
23%
$100k–150k
4%
$150k–200k
11%
Over $200k
3%
Employment & Commute

How People Get to Work

Drove Alone
62%
Walked
26%
Work From Home
12%

Commute Time

Under 15 min
39%
15–30 min
41%
30–45 min
19%
Over 45 min
1%
Housing Stock

Year Built

Before 1940
6%
1940s–1950s
1%
1960s–1970s
11%
1980s–1990s
26%
2000+
55%

Summary

Total Units200
Vacant7
Owner Occupied95.9%
Renter Occupied4.2%
Avg HH Size1.99
Frequently Asked Questions
ZIP code 57433 is in Columbia, SD, in Brown County.
ZIP code 57433 is located in South Dakota (SD).
ZIP code 57433 is in Brown County, SD.
ZIP 57433 observes the Chicago timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 57433 is 384 people (ACS 2023).
The median household income in ZIP code 57433 is $71,215 (ACS 2023).
Home value data not available.
About ZIP Code 57433

ZIP code 57433 is located in Columbia, South Dakota, within Brown County. With a population of 384, this is a sparsely populated ZIP code with a middle-aged community — the median age is 40.6 years. Economically, 57433 is a solidly middle-class ZIP code: the median household income of $71,215 is near the national average.

The population of 57433 is primarily White (99.74%). Residents are well-educated — 40.7% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 0.5%. Household income has grown by 11% since 2019.

About 12% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 62%.

Overall, ZIP code 57433 in Columbia, SD is characterized as solidly middle-class, well-educated, a middle-aged community, and predominantly owner-occupied.