US > Iowa > Allamakee County > Dorchester, IA 52140

52140 ZIP Code Profile, Map, Data & Demographics

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Dorchester, IA
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ZIP Code 52140: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Dorchester, IA 52140

  • ZIP Code Type: STANDARD
  • County: Allamakee County
  • Centroid: Latitude 43.435, Longitude -91.513
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 52140 has segments in 2 Counties (Allamakee, Winneshiek).

  • Businesses Addresses: 5
  • PO Box Addresses: 0
  • Residential Addresses: 237
    • Multi-Family Addresses: 0
    • Single Family Addresses: 237

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

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Dorchester, IA 52140 Data & Demographics

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

POPULATION

Total Population 671 (100%)
Population Density 9 per sq mi
Diversity Index1 4
 
 

INCOME

Median Household Income $72,188
Per Capita Income $53,455
Median Home Value $208,300
 

HOUSING

Total HU (Housing Units) 312 (100%)
Owner Occupied HU 247 (79.2%)
Renter Occupied HU 29 (9.3%)
Vacant Housing Units 36 (11.5%)
 

HOUSEHOLDS

Total Households 276
Average Household Size 2.43
Family Households 208 (75.4%)
NOTES
  1. 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).

Dorchester, IA 52140 - Peer Comparisons by Rank and Percentile

The table below compares 52140 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 # 25152 26th
Population Density # 28448 16th
Median Household Income # 16838 50th
Per Capita Income # 5310 84th
Diversity Index # 30254 10th

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


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Allamakee County


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