Polk County · Iowa
ZIP code 50311
- Population
- 15,889
- Median income
- $63,233
- Median home
- $228,000
- Sales tax
- 7%
ZCTA residents
Household, past 12 months
Owner-occupied value
Combined state + local
Quick answer
ZIP 50311 sits in Polk County, Iowa and is home to 15,889 people. Median household income is $63,233, the median home is worth $228,000 and median gross rent is $1,019. 48% of households own their home, and purchases are taxed at 7% combined.
- County
- Polk County
- State
- Iowa (IA)
- Area codes
- 515
FIPS 19153
970 ZIPs covered
NANPA codes serving this area
The numbers for 50311
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 15,889ZIP 50311 residents
- Median household income
- $63,233Past 12 months, inflation adjusted
- Median home value
- $228,000Owner-occupied units
- Median gross rent
- $1,019Rent plus utilities, monthly
- Median age
- 30.8 yrsAll residents
- Homeownership rate
- 48%Owner-occupied households
Sales tax in 50311
What a purchase inside this ZIP costs at checkout.
This ZIP falls inside the Des Moines rate area, so state, county, city and district levies are published here as a full stack.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 50311 compares
ZIP 50311 against the median ZIP in Polk County and across Iowa.
| Measure | ZIP 50311 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $63,233 | $89,323 | $71,182 | -11% |
| Median home value | $228,000 | $267,600 | $151,550 | +50% |
| Median gross rent | $1,019 | $1,078 | $808 | +26% |
| Population | 15,889 | 12,875 | 935 | +1599% |
Medians are computed across the 33 ZIP areas in Polk County and the 970 ZIP areas in Iowa.
Statewide rank
Where this ZIP places among all 970 Iowa ZIP areas.
- Income
- #668
- Home value
- #152
- Population
- #57
richer than 29% of 937 state ZIPs
above 84% of 922 state ZIPs
larger than 94% of 970 state ZIPs
Comparable ZIP codes
Iowa ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Polk County.
ZIP 50311 questions
Common questions about this ZIP code.
- Where is ZIP code 50311?
- ZIP 50311 lies mostly in Polk County, Iowa. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 50311?
- Purchases are taxed at 7% combined, built from the Des Moines jurisdiction stack.
- Is 50311 expensive to live in?
- Median rent runs $1,019 a month, about 19% of median household income, and the median home is worth $228,000 — +50% against the typical Iowa ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- Iowa Department of Revenue — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.