Inwood, IA 51240 ZIP Code Profile

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Inwood, IA

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ZIP Code 51240: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Inwood, IA 51240

  • ZIP Code Type: STANDARD
  • County: Lyon County
  • Centroid: Latitude 43.305, Longitude -96.429
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 51240 has segments in 2 Counties (Lyon, Sioux).

  • Businesses Addresses: 55
  • PO Box Addresses: 242
  • Residential Addresses: 387
    • Multi-Family Addresses: 3
    • Single Family Addresses: 384

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

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


51240 ZIP Code Map

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Inwood, IA 51240 Data & Demographics (As of July 1, 2017)


Total Population 1,690
Daytime Population: Workers 699
Daytime Population: Residents 842
Total Daytime Population (TDP) 1,541
Ratio TDP/Total Population1 0.91
Population in Households 1,656
Population in Familes 1,448
Population in Group Qrtrs 34
Population Density2 18
Diversity Index3 9


Median Household Income $54,479
Average Household Income $69,145
Per Capita Income $26,398


Total Housing Units 690 (100%)
Owner Occupied HU 528 (76.5%)
Renter Occupied HU 112 (16.2%)
Vacant Housing Units 50 ( 7.2%)
Median Home Value $138,889
Average Home Value $170,076


Total Households 640
Average Household Size 2.59
Family Households 479
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 0.21% 0.28%
Households 0.31% 0.31%
Families 0.17% 0.21%
Median Household Income   2.64%
Per Capita Income   2.75%

Inwood, IA 51240 - Peer Comparisons by Rank and Percentile

The table below compares 51240 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 # 327 66th
Population Density # 584 40th
Diversity Index # 527 46th
Median Household Income # 481 50th
Per Capita Income # 633 34th

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

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