Dedham, IA 51440 ZIP Code Profile

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Dedham, IA

ZIP Code 51440: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Dedham, IA 51440

  • ZIP Code Type: STANDARD
  • County: Carroll County
  • Centroid: Latitude 41.908, Longitude -94.82
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 21
  • PO Box Addresses: 71
  • Residential Addresses: 76
    • Multi-Family Addresses: 0
    • Single Family Addresses: 76

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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51440 ZIP Code Map

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Dedham, IA 51440 Data & Demographics (As of July 1, 2017)


Total Population 414
Daytime Population: Workers 827
Daytime Population: Residents 214
Total Daytime Population (TDP) 1,041
Ratio TDP/Total Population1 2.51
Population in Households 414
Population in Familes 351
Population in Group Qrtrs 0
Population Density2 15
Diversity Index3 2


Median Household Income $57,237
Average Household Income $72,886
Per Capita Income $26,760


Total Housing Units 166 (100%)
Owner Occupied HU 130 (78.3%)
Renter Occupied HU 22 (13.3%)
Vacant Housing Units 14 ( 8.4%)
Median Home Value $103,333
Average Home Value $196,731


Total Households 152
Average Household Size 2.72
Family Households 108
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.1% -0.1%
Households 0.18% -0.13%
Families 0.0% -0.37%
Median Household Income   3.52%
Per Capita Income   2.77%

Dedham, IA 51440 - Peer Comparisons by Rank and Percentile

The table below compares 51440 to the other 963 ZIP Codes in Iowa by rank and percentile using July 1, 2017 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 # 744 23rd
Population Density # 650 32nd
Diversity Index # 939 3rd
Median Household Income # 337 65th
Per Capita Income # 608 37th

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

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