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Blue Ash city, OH

ZIP Code 45242 — Blue Ash city, OH Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Upper Middle ClassLow Snow AreaRemote Work Hub

Map, Quick Facts & Location

Quick Facts

Local time
Population
22,253
Median Income
$120,869
+61% vs US avg
Home Value
$421,200
+21% vs US avg
Median Rent
$1,603
+38% vs US avg
Median Age
41.6 yrs
+7% vs US avg
Area Code
Congress
Top Ancestry
GermanIrishEnglish
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Location
Coordinates
39.2428, -84.3530
Elevation
520 ft
Land Area
13.8 sq mi
Water Area
0.0 sq mi (0% water)

At a glance

Population
22,253
Density
N/A
Median income
$120,869
+61% vs US avg
Home value
$421,200
+21% vs US avg
Median rent
$1,603
+38% vs US avg
Timezone

Overview of ZIP Code 45242

UniversityUniversity / college area
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What to know about ZIP 45242

ZIP code 45242 covers Blue Ash, OH in Hamilton County with a population of about 22,253.

At a glance, the area shows median age of 41.6 versus a U.S. median of about 38.9.

It sits in telephone area codes 283, 513; U.S. House district OH-1; the CINCINNATI media market.

Local search focus: University

Blue Ash, OH sits in a university / college context (near arizona college of nursing-cincinnati (2.3 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.

Income and economy in Blue Ash, OH

Median household income in ZIP 45242 is about $120,869 — about 61% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 4.8%; unemployment rate near 3.3%; 70.0% of adults with a bachelor’s degree or higher (about 36.3 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Professional services, and Manufacturing; about 18.1% of workers reporting work-from-home (about 2.9 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 45242

Median home value is about $421,200 — about 21% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $1,603 (about 38% above the U.S. median rent ($1,163)), and owner-occupancy near 77.0% (about 11.6 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 45242 in Blue Ash, OH, a household would need roughly $116,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,706. That is roughly in line with the local median household income ($120,869). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Blue Ash city, OH as Relatively High (composite score 96.3), which is among the highest nationally. The strongest component scores on US5 are flood (96.9) and wildfire (47.3). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Blue Ash city, OH show little to no average snow.

IRS migration statistics show a net inflow of about 944 for ZIP 45242 (Blue Ash city, OH) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.

Nearby (from this ZIP)

Airport LUK (10.3 miles (16.6 km)) · Arizona College of Nursing-Cincinnati (2.3 miles (3.7 km)) · William Howard Taft National Historic Site (11.9 miles (19.1 km)) · VA: VISN 10: VA Healthcare System (2.3 miles (3.7 km))

Full lists and map pins are in the Infrastructure section below.