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Delaware County · Iowa

ZIP code 52237

Population, income, housing costs and the sales tax rate charged on purchases inside ZIP 52237 — Census 2019-2023 ACS 5-year, no modelled estimates.
Population
1,526

ZCTA residents

Median income
$83,633

Household, past 12 months

Median home
$135,200

Owner-occupied value

Sales tax
6%

Iowa state rate

Quick answer

ZIP 52237 sits in Delaware County, Iowa and is home to 1,526 people. Median household income is $83,633, the median home is worth $135,200 and median gross rent is $381. 84.2% of households own their home, and purchases are taxed at 6% (Iowa state rate).

County
Delaware County

FIPS 19055

State
Iowa (IA)

970 ZIPs covered

Area codes
Not published

No NANPA match for this ZIP

Metro area
Outside covered metros

Rate jurisdiction used for tax

The numbers for 52237

American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.

Population
1,526ZIP 52237 residents
Median household income
$83,633Past 12 months, inflation adjusted
Median home value
$135,200Owner-occupied units
Median gross rent
$381Rent plus utilities, monthly
Median age
27.6 yrsAll residents
Homeownership rate
84.2%Owner-occupied households

ZIP 52237 in context

How this area compares with national benchmarks.

ZIP 52237 is a small town in Delaware County, Iowa, with 1,526 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #344 of 970 ranked by population — larger than 64% of them. The median age here is 27.6 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in ZIP 52237 earn a median of $83,633 a year, 6.5% above the national figure of $78,538. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 12.2% of residents here, below the 12.4% national rate.

The typical owner-occupied home in ZIP 52237 is valued at $135,200, 55.4% below the national figure, while median gross rent runs $381 a month, 72.9% below the national figure, or roughly $4,572 across a full year. A household on the local median income would put about 5.5% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 1.6×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 84.2% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 27.6 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Reading ZIP 52237 in context

How 52237 sits inside Delaware County and Iowa.

ZIP 52237 is tabulated inside Delaware County, Iowa, one of 9 ZIP areas the Census publishes for that county and 970 across Iowa. Fewer than 2,500 people are counted here, so the ZIP behaves like a village delivery route rather than a neighbourhood. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 52237 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 52237 reports a median household income of $83,633, 9% above the $76,923 county median, and 17% above the $71,182 typical IA ZIP. Owner-occupied homes are valued at a median of $135,200, 20% below the county figure and 11% below the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $381 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Iowa charges 6% statewide, and local governments overlapping 52237 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 52237 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.

Sales tax in 52237

What a purchase inside this ZIP costs at checkout.

Rate applied
6%State base rate only
Tax on $100
$6Rounded to the dollar
Tax on $1,000
$60Before any exemptions

Iowa levies 6% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.

Affordability in this ZIP

Derived from the Census medians above — indicative, not an offer.

Rent burden
5%Median rent ÷ median income
Price-to-income
1.6×Home value ÷ household income
Est. mortgage
$702/mo20% down, 30-yr at 6.75%
Poverty rate
12.2%Residents below poverty line

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 52237 compares

ZIP 52237 against the median ZIP in Delaware County and across Iowa.

MeasureZIP 52237County medianState medianvs state
Median household income$83,633$76,923$71,182+17%
Median home value$135,200$168,800$151,550-11%
Median gross rent$381$750$808-53%
Population1,5261,186935+63%

Medians are computed across the 9 ZIP areas in Delaware County and the 970 ZIP areas in Iowa.

Statewide rank

Where this ZIP places among all 970 Iowa ZIP areas.

Income

richer than 74% of 937 state ZIPs

#240
Home value

above 39% of 922 state ZIPs

#560
Population

larger than 65% of 970 state ZIPs

#344

Comparable ZIP codes

Iowa ZIP areas with almost the same household income.

ZIPCountyIncomeHome valueRent
50669Grundy County$83,636$165,300$828
52032Dubuque County$83,625$260,300$376
50219Marion County$83,601$272,600$995
50320Polk County$83,710$207,700$1,110
50634Black Hawk County$83,750$187,500$815
50122Hardin County$83,810$110,100$688

Nearby ZIP codes

Other ZIP codes filed under Delaware County.

Adjacent ZIP Codes

Other ZIP codes in Delaware County, Iowa.

ZIP 52237 questions

Common questions about this ZIP code.

Where is ZIP code 52237?
ZIP 52237 lies mostly in Delaware 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 52237?
Iowa charges 6% statewide, plus any county, city or district rate that applies locally.
Is 52237 expensive to live in?
Median rent runs $381 a month, about 5% of median household income, and the median home is worth $135,200 — -11% 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.

Related pages for this area.

Sources & transparency

Every figure on this page is a published estimate for ZIP Code Tabulation Area 52237, except the affordability ratios and mortgage estimate, which we derive from those medians and label as estimates.

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.