US > South Dakota > Gregory County > Gregory, SD 57533

57533 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:

Carlock, SD | Dixon, SD | Gregory, SD

ZIP Code 57533: Basic Data & USPS Preferred City Name

Preferred Name, USPS

Gregory, SD 57533

Acceptable Alternative

Dixon, SD 57533

Iona, SD 57533

Not Acceptable, USPS

Carlock, SD 57533

ZIP Code Type: STANDARD
County: Gregory County
Centroid: Latitude 43.234, Longitude -99.427
Time Zone: Central Time Zone (UTC -6 hours)
Observes DST: Yes

ZIP Code 57533 has segments in 5 Counties (Gregory, Keya Paha, Lyman, Morrill, Tripp).

Businesses Addresses: 121
PO Box Addresses: 59
Residential Addresses: 845

Multi-Family Addresses: 41
Single Family Addresses: 804

The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.

Gregory, SD 57533 Data & Demographics

Source: 2020-2024 American Community Survey 5-Year Estimates

POPULATION
Total Population	1,674 (100%)
Population Density	4 per sq mi
Diversity Index¹	25


INCOME
Median Household Income	$58,500
Per Capita Income	$31,891
Median Home Value	$122,400

HOUSING
Total HU (Housing Units)	869 (100%)
Owner Occupied HU	465 (53.5%)
Renter Occupied HU	205 (23.6%)
Vacant Housing Units	199 (22.9%)

HOUSEHOLDS
Total Households	670
Average Household Size	2.41
Family Households	373 (55.7%)

NOTES

The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).

Gregory, SD 57533 - Peer Comparisons by Rank and Percentile

The table below compares 57533 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 19786	41st
Population Density	# 30477	10th
Median Household Income	# 24811	27th
Per Capita Income	# 22556	33rd
Diversity Index	# 17721	48th

Additional comparisons and rankings can be made with a VERY EASY TO USE South Dakota Census Data Comparison Tool.

Popular Places Near ZIP Code 57533

Top 20 Most Popular Places Near ZIP Code 57533
Popularity rankings are based on positive reviews, search queries, and other user data.

Use HTL Address Research for a South Dakota Address and get...

Quick & Easy Ways to...

South Dakota Census Data Comparison Tool

More Tools and Resources:

For information about schools and school attendance zones, use the HTL Address Tool
Our new HTL Neighborhood Explorer provides lots of detail about any neighborhood.
The new 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
See the References & Data Sources page for more information about methodology and sources of data.

57533 ZIP Code Profile, Map, Data & Demographics

ZIP Code 57533: Basic Data & USPS Preferred City Name

Gregory, SD 57533 Data & Demographics

POPULATION

INCOME

HOUSING

HOUSEHOLDS