Rock Rapids, IA 51246 ZIP Code Profile

Related Place Profiles:
Edna, IA | Rock Rapids, IA

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ZIP Code 51246: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rock Rapids, IA 51246

Not Acceptable, USPS
Edna, IA 51246

  • ZIP Code Type: STANDARD
  • County: Lyon County
  • Centroid: Latitude 43.422, Longitude -96.248
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 166
  • PO Box Addresses: 28
  • Residential Addresses: 1,476
    • Multi-Family Addresses: 79
    • Single Family Addresses: 1,397

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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51246 ZIP Code Map

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Rock Rapids, IA 51246 Data & Demographics (As of July 1, 2017)


Total Population 3,786
Daytime Population: Workers 1,889
Daytime Population: Residents 1,839
Total Daytime Population (TDP) 3,728
Ratio TDP/Total Population1 0.98
Population in Households 3,701
Population in Familes 3,138
Population in Group Qrtrs 85
Population Density2 24
Diversity Index3 11


Median Household Income $52,004
Average Household Income $65,810
Per Capita Income $26,224


Total Housing Units 1,694 (100%)
Owner Occupied HU 1,170 (69.1%)
Renter Occupied HU 325 (19.2%)
Vacant Housing Units 199 (11.7%)
Median Home Value $131,776
Average Home Value $148,397


Total Households 1,495
Average Household Size 2.48
Family Households 1,018
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 -0.01% 0.05%
Households -0.06% 0.03%
Families -0.2% -0.06%
Median Household Income   2.58%
Per Capita Income   2.96%

Rock Rapids, IA 51246 - Peer Comparisons by Rank and Percentile

The table below compares 51246 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 # 165 83rd
Population Density # 436 55th
Diversity Index # 396 59th
Median Household Income # 604 37th
Per Capita Income # 653 32nd

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

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