Rock Valley, IA 51247 ZIP Code Profile

Related Place Profiles:
Carmel, IA | Rock Valley, IA

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ZIP Code 51247: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rock Valley, IA 51247

Not Acceptable, USPS
Carmel, IA 51247

  • ZIP Code Type: STANDARD
  • County: Sioux County
  • Centroid: Latitude 43.205, Longitude -96.291
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 51247 has segments in 2 Counties (Lyon, Sioux).

  • Businesses Addresses: 209
  • PO Box Addresses: 25
  • Residential Addresses: 1,921
    • Multi-Family Addresses: 135
    • Single Family Addresses: 1,786

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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51247 ZIP Code Map

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Rock Valley, IA 51247 Data & Demographics (As of July 1, 2017)


Total Population 5,115
Daytime Population: Workers 3,216
Daytime Population: Residents 2,490
Total Daytime Population (TDP) 5,706
Ratio TDP/Total Population1 1.12
Population in Households 5,019
Population in Familes 4,347
Population in Group Qrtrs 96
Population Density2 47
Diversity Index3 34


Median Household Income $54,738
Average Household Income $65,004
Per Capita Income $23,481


Total Housing Units 1,919 (100%)
Owner Occupied HU 1,470 (76.6%)
Renter Occupied HU 362 (18.9%)
Vacant Housing Units 87 ( 4.5%)
Median Home Value $152,928
Average Home Value $185,952


Total Households 1,832
Average Household Size 2.74
Family Households 1,317
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 0.75% 0.75%
Households 0.74% 0.74%
Families 0.6% 0.67%
Median Household Income   1.89%
Per Capita Income   2.54%

Rock Valley, IA 51247 - Peer Comparisons by Rank and Percentile

The table below compares 51247 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 # 140 86th
Population Density # 283 71st
Diversity Index # 76 92nd
Median Household Income # 467 52nd
Per Capita Income # 866 10th

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

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