PlainZIP

Columbia, SD · standard

ZIP Code 57433

Brown County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

383
1/sq mi
$50,417
Median income
21.7%
Bachelor's or higher

The verdict

Columbia pairs one of the lowest household incomes in the country, in a rural, homeowner-dominated area.

15th pct
household income, US ZIPs
1
people per sq mi
99%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57433 against every reporting US ZIP.

ZIP code 57433 is a sparsely populated ZIP (a standard USPS delivery area) in Columbia, Brown County, South Dakota, home to just 383 residents across 319.2 square miles, a density of 1 people per square mile, in the Chicago time zone.

ZIP 57433 reports a modest median household income of $50,417 (34% below the South Dakota average), while per-capita income is $34,722. Local economic indicators show a 2.2% poverty rate alongside 22.6% unemployment. On housing, the median home value is - with median rent at - per month, and 98.9% of occupied units are owner-occupied.

Educational attainment sits below the national norm: 21.7% of adults hold a bachelor's degree or higher, the median age is 46.9, and the average commute is -. A geography-based comparison follows: 1 ZIP codes within about 10 miles of 57433, plus 6 more within Brown County, give a clearer read than the national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57433, Columbia, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

383

Population

319.2

Area (sq mi)

1

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57433?

46.9

Median Age

45.6%

Male

54.4%

Female

0.0%

Foreign-Born

White 100.0%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.0%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$50,417

Median Household Income

-34% vs state

$34,722

Per Capita Income

2.2%

Poverty Rate

22.6%

Unemployment Rate

How ZIP 57433 ranks nationally

Columbia, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$50,417 15th percentile higher than 15% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 43.8%
Bachelor's Degree or Higher 21.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

194

Total Housing Units

177

Occupied Units

17

Vacant Units

1.80

Avg Household Size

Occupancy Type

Owner 98.9%
Renter 1.1%

1987

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 9 business establishments in ZIP 57433, employing approximately 19 people with a combined annual payroll of $1,100,000.

9

Businesses

19

Employees

$1.1M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Construction 4 44.4%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 57433 vs 57449 →

ZIP Code City Population Distance
57449 Houghton, SD 146 8.8 mi

More ZIP Codes in Brown County

57401 standard
Aberdeen, SD
Pop: 30,061
57445 standard
Groton, SD
Pop: 2,068
57479 standard
Warner, SD
Pop: 666
57427 standard
Bath, SD
Pop: 620
57441 standard
Frederick, SD
Pop: 607
57481 standard
Westport, SD
Pop: 598

Related Areas

Brown County Columbia, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57433 in? ▼
ZIP code 57433 (Columbia) is located in Brown County, South Dakota. Brown County contains multiple ZIP codes, see the full list at /counties/brown-sd.
What is the population of ZIP code 57433? ▼
ZIP code 57433 in Columbia, SD has a population of 383 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57433? ▼
The median household income in ZIP 57433 is $50,417, which is 34% below the national average of $76,288.
What is the demographic makeup of ZIP 57433? ▼
The largest racial group in ZIP 57433 is White at 100.0%.
How many businesses are in ZIP code 57433? ▼
ZIP code 57433 has 9 business establishments employing approximately 19 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 57433? ▼
In ZIP code 57433, 43.8% of residents aged 25+ have a high school diploma or higher, and 21.7% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57433? ▼
In ZIP code 57433, approximately 98.9% of occupied housing units are owner-occupied and 1.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57433? ▼
The poverty rate in ZIP code 57433 is 2.2% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.