Knoxville, IA 50138 ZIP Code Profile

Related Place Profiles:
Knoxville, IA | Pershing, IA

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ZIP Code 50138: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Knoxville, IA 50138

Acceptable Alternative
Pershing, IA 50138

  • ZIP Code Type: STANDARD
  • County: Marion County
  • Centroid: Latitude 41.32, Longitude -93.103
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes
  • Businesses Addresses: 392
  • PO Box Addresses: 163
  • Residential Addresses: 4,895
    • Multi-Family Addresses: 495
    • Single Family Addresses: 4,400

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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50138 ZIP Code Map

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Knoxville, IA 50138 Data & Demographics (As of July 1, 2017)


Total Population 11,813
Daytime Population: Workers 6,065
Daytime Population: Residents 6,021
Total Daytime Population (TDP) 12,086
Ratio TDP/Total Population1 1.02
Population in Households 11,606
Population in Familes 9,460
Population in Group Qrtrs 207
Population Density2 69
Diversity Index3 11


Median Household Income $52,393
Average Household Income $63,062
Per Capita Income $26,108


Total Housing Units 5,365 (100%)
Owner Occupied HU 3,519 (65.6%)
Renter Occupied HU 1,337 (24.9%)
Vacant Housing Units 509 ( 9.5%)
Median Home Value $128,706
Average Home Value $144,125


Total Households 4,856
Average Household Size 2.39
Family Households 3,202
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 0.09% 0.2%
Households 0.22% 0.28%
Families 0.05% 0.19%
Median Household Income   1.25%
Per Capita Income   2.12%

Knoxville, IA 50138 - Peer Comparisons by Rank and Percentile

The table below compares 50138 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 # 74 92nd
Population Density # 232 76th
Diversity Index # 402 58th
Median Household Income # 589 39th
Per Capita Income # 662 31st

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

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