New Albany has claimed the title of Central Ohio's wealthiest ZIP code, with average adjusted gross incomes hitting $775,100, even as the city's own median household income sits at $238,250. Meanwhile, just a few miles south, Downtown Columbus tells a much stranger story: a median household income of roughly $74,000 alongside an average adjusted gross income that tops $1.07 million, the widest wealth gap of any ZIP code in the region.
The figures come from a new ranking of Central Ohio's top 36 wealth-concentrated ZIP codes published by Columbus Business First, which built its 2026 Wealth Index from a weighted calculation combining per capita income, population density, median age, and median home value. The list draws on 2024 American Community Survey five-year estimates, the most current data available, and covers Franklin, Delaware, Licking, Union, Fairfield, Madison, and Pickaway counties. Its parent research effort, American City Business Journals, evaluated almost 33,200 ZIP codes nationwide to compile the index, according to the outlet.
To land on the list, a ZIP code had to clear the metro's average per capita income threshold, which the U.S. Census Bureau put at $45,178, while also keeping its poverty rate under 15%. Columbus Business First excluded ZIP codes with fewer than 250 residents as of 2024 Census estimates and stripped out any with less than 0.5 square miles of land area, a methodology researcher Grace McCormick says adjusts for land area so that oversized rural ZIP codes do not skew the results. The final list contains 35 postal codes ranked out of the metro's top 36.
Delaware County's Suburban Money Machine
The New Albany numbers do not exist in a vacuum. New Albany sits inside Delaware County, which the U.S. Census Bureau ranks as Ohio's wealthiest county, with a median household income of $133,540 in 2024 estimates that previously put it 35th nationwide among all U.S. counties. The county's high-performing public school districts and open land have steadily pulled affluent buyers north out of Franklin County.
Nearby Galena, in the 43021 ZIP code, posted the region's highest median household income at $160,120, driven by rapid luxury residential development near Alum Creek State Park, according to 1808Delaware. What was once a small rural village has turned into one of outer Delaware County's premier high-earning enclaves. Powell, in the 43065 ZIP code, is not far behind at $154,797, a community where 97% of workers hold white-collar jobs and more than 31% work from home, per NeighborhoodScout — a shift tied to Liberty Township's top-rated schools drawing remote executive and tech talent.
Dublin's 43017 ZIP code, meanwhile, posts average adjusted gross incomes above $700,000. The city, home to corporate headquarters including Cardinal Health and host of the PGA Tour's Memorial Tournament, directs 75% of its local income tax revenue into its municipal General Fund and the remaining 25% into its Capital Improvements Program, according to the City of Dublin.
Why Downtown and Grandview Look So Different on Paper
Downtown Columbus, ZIP code 43215, is the outlier on the list precisely because its numbers pull in opposite directions. Its median household income of roughly $74,000 to $74,469 sits well below the suburban ZIP codes, yet its average adjusted gross income tops $1.07 million — a gap 1808Delaware attributes to a surge of luxury high-rise condo developments catering to corporate executives, young professionals, and downsizing retirees who now share ZIP code boundaries with lower-income renters.
Grandview Heights, in the 43212 ZIP code, shows a similar pattern on a smaller scale. Its median household income runs between $65,199 and $77,257, but average adjusted gross income sits near $585,000, evidence that dense, walkable inner suburbs can attract high net-worth residents without relying on multi-acre estates. The compact community blends historic housing stock with modern commercial corridors just west of downtown.
Upper Arlington's 43221 ZIP code offers a different flavor of affluence tied to education rather than raw income concentration. Its median household income of $118,768 and average household income of $158,388 come alongside a population where 70% of adults hold a bachelor's degree or higher, according to Niche — a legacy of the suburb's proximity to Ohio State University and its long history of housing university leadership, medical professionals, and corporate executives.
The Regional Forces Behind the Numbers
None of this wealth concentration is happening in isolation. Intel's semiconductor manufacturing project in Licking County and New Albany has grown into a $28 billion investment commitment, generating 7,000 construction jobs and 10,000 indirect support jobs clustered near some of the region's wealthiest ZIP codes, according to JobsOhio. The so-called Silicon Heartland site has drawn dozens of tech suppliers and corporate data centers into the New Albany International Business Park.
That growth is landing in a metro area that is expanding faster than almost anywhere else in the Midwest. The Columbus metropolitan area added more than 21,000 residents between July 2024 and July 2025, reaching a total population of 2,242,028 and growing at double the national rate, tying Atlanta as the 13th fastest-growing large metro in the country, per the Columbus Partnership. International migration accounted for 51% of that growth during the period.
Grace McCormick, the Columbus Business First researcher behind the rankings, can be reached at 614-220-5470 for questions on the methodology. The full ranking of all 35 ZIP codes is available to Columbus Business First subscribers.
