What city is ZIP code 57533?

ZIP code 57533 is in Gregory, SD (Gregory County).

What county is ZIP code 57533 in?

ZIP code 57533 is mostly in Gregory County, South Dakota.

How many people live in ZIP code 57533?

About 1,674 people live in the 57533 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Checked Oct 26, 2026

ZIP Code 57533

Gregory, SD, Gregory County

Population

1,674

Land area

376.9sq mi

People per sq mi

City

Gregory

ZIP 57533 and nearby ZIP codes

Full map

ZIP 57533 at a glance

ZIP 57533 (Gregory) is 63% less dense than South Dakota as a whole.
Households here earn a median of $58,500 a year, 22% less than the South Dakota figure of $75,081.
A typical owner-occupied home is valued at $122,400 (52% below South Dakota) and median rent is $633 a month.

Local data for ZIP 57533

Counts from official public data

Housing and community stats

ZIP 57533, American Community Survey 2020-2024

Full profile

Median household income

$58,500

Poverty rate

7.1%

Median home value

$122,400

Median rent

$633/mo

Homeownership

69.4%

Bachelor's or higher

20.4%

Median age

40.6

Average commute

13.5 min

Income, education and commute

Economy and federal money

Businesses, pandemic loans and political donations

Details

Business establishments

ZIP Business Patterns 2023

Employees

638

$25.8M annual payroll

PPP loans

$9.8M

359 loans

Campaign donations

$4,899

15% D, 12% R, 2026 cycle

PPP loans in this ZIP

Environment and hazard risk

ZIP 57533, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very Low

Top: cold wave

Storm events since 1996

706

Countywide, mostly hail

Flood insurance policies

0.0% of homes, county

July high / Jan low

87° / 10°F

26.7 inches of rain a year

Hazards, floods and storm history Check a flood zone

Health statistics

Share of adults in ZIP 57533, CDC PLACES estimates

All 40 measures

Obesity

35.5%

U.S. 33.3% +2.2 pts

Diabetes

13.9%

U.S. 12.1% +1.8 pts

Smoking

15.7%

U.S. 12.8% +2.9 pts

Uninsured (18-64)

8.8%

U.S. 11.1% -2.3 pts

Frequently asked questions

What city is ZIP code 57533?: ZIP code 57533 is in Gregory, SD (Gregory County).
What county is ZIP code 57533 in?: ZIP code 57533 is mostly in Gregory County, South Dakota.
How many people live in ZIP code 57533?: About 1,674 people live in the 57533 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.

Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.