Rockwell City, IA 50579 ZIP Code Profile


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ZIP Code 50579: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rockwell City, IA 50579

Not Acceptable, USPS
Lanedale, IA 50579
Lavinia, IA 50579
Piper, IA 50579
Rands, IA 50579
Richards, IA 50579
Sherwood, IA 50579

  • ZIP Code Type: STANDARD
  • County: Calhoun County
  • Centroid: Latitude 42.394, Longitude -94.631
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 108
  • PO Box Addresses: 35
  • Residential Addresses: 1,063
    • Multi-Family Addresses: 85
    • Single Family Addresses: 978

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

EXTREMELY LOCAL Demographic Data

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50579 ZIP Code Map

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Rockwell City, IA 50579 Data & Demographics (As of July 1, 2017)


Total Population 2,940
Daytime Population: Workers 888
Daytime Population: Residents 1,398
Total Daytime Population (TDP) 2,286
Ratio TDP/Total Population1 0.78
Population in Households 2,657
Population in Familes 2,140
Population in Group Qrtrs 283
Population Density2 19
Diversity Index3 17


Median Household Income $51,652
Average Household Income $65,278
Per Capita Income $24,888


Total Housing Units 1,372 (100%)
Owner Occupied HU 834 (60.8%)
Renter Occupied HU 241 (17.6%)
Vacant Housing Units 297 (21.6%)
Median Home Value $72,954
Average Home Value $108,663


Total Households 1,075
Average Household Size 2.47
Family Households 686
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 2.49% -0.31%
Households -0.11% -0.34%
Families -0.3% -0.41%
Median Household Income   2.24%
Per Capita Income   2.25%

Rockwell City, IA 50579 - Peer Comparisons by Rank and Percentile

The table below compares 50579 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 # 205 79th
Population Density # 539 44th
Diversity Index # 224 77th
Median Household Income # 618 36th
Per Capita Income # 770 20th

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

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