51240 Income Statistics

Comparison to Surrounding Areas

51240 Median Household Income

The median household income ($83,929) for 51240 is less than the median household income for 51241 ($87,446) and Sioux County ($86,098). But it's more than 51235 ($71,016), 57013 ($76,458), 57027 ($-1), 51230 ($75,625), 51247 ($78,358), Lyon County ($76,746), and Inwood city ($62,333).

51240$83,929
Inwood city$62,333
Lyon County$76,746
Sioux County$86,098

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51240 Average Household Income

The average household income ($124,241) for 51240 is more than 57027 ($96,388), 51241 ($105,398), 51247 ($99,084), 57013 ($94,642), 51230 ($77,292), 51235 ($100,392), Sioux County ($104,988), Lyon County ($95,299), and Inwood city ($76,941).

51240$124,241
Inwood city$76,941
Lyon County$95,299
Sioux County$104,988

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51240 Per-Capita Income

The per-capita income for 51240 is $41,804. The per capita income ($41,804) for 51240 is more than 57027 ($38,662), 51241 ($41,199), 51247 ($35,505), 57013 ($41,025), 51230 ($30,405), 51235 ($40,773), Sioux County ($37,166), Lyon County ($36,117), and Inwood city ($34,133).

51240$41,804
Inwood city$34,133
Lyon County$36,117
Sioux County$37,166

Get Per-Capita Income for all Zip Codes in Iowa.

51240 High Income Households

14.1% of households make over $200,000 a year. The percent high income households (14.1%) for 51240 is more than 57027 (2.5%), 51241 (7.8%), 51247 (9.1%), 57013 (8.4%), 51230 (1.1%), 51235 (5.4%), Sioux County (10.0%), Lyon County (7.9%), and Inwood city (3.8%).

5124014.1%
Inwood city3.8%
Lyon County7.9%
Sioux County10.0%

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51240 Median Household Income by Age of Householder

under 25 years 25 to 44 years 45 to 64 years 65 years and over
51240$97,500$105,592$92,533$37,500
Inwood city$97,500$74,375$76,250$27,500
Lyon County$64,583$87,162$99,028$44,301
Sioux County$43,750$100,981$104,955$60,475

Get Median Household Income by Age of Householder for all Zip Codes in Iowa.

51240 Map

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About the Data

Data Sources

All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 51240 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.

The following data tables were used:

  • B19001 Household Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • B19013 Median Household Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • B19301 Per Capita Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • S1902 Mean Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • B19049 Median Household Income in the Past 12 Months (in 2024 inflation-adjusted dollars) By Age Of Householder

Margins of Error

Margins of error for the income data are:

Median Household Income Average Household Income Per Capita Income High Income Households Median Household Income by Age of Householder
under 25 25 to 44 45 to 64 65+
51240+/-$5,960+/-$32,312+/-$8,695+/-8.7%+/-$44,688+/-$33,594+/-$17,444+/-$25,273
Inwood city+/-$19,276+/-$13,569+/-$4,842+/-2.7%+/-$44,688+/-$10,167+/-$16,570+/-$6,148
Lyon County+/-$7,073+/-$5,555+/-$1,874+/-1.7%+/-$8,861+/-$5,118+/-$11,976+/-$6,584
Sioux County+/-$7,089+/-$4,769+/-$1,361+/-1.5%+/-$24,015+/-$6,602+/-$11,719+/-$4,877