A home priced meaningfully below what the same square footage costs in Greenville or Hockessin looks like the obvious financial call. Before deciding, consider two things no portal listing shows: a wage tax that exists nowhere else in Delaware, and a property reassessment review that is still being sorted out parcel by parcel more than a year after the bills first went out.
Both issues affect Wilmington buyers, though the wage tax can also reach people who work in the city while living outside it. Neither shows up next to the price.
How Wilmington's Wage Tax Applies
According to Rippling, Wilmington is the only municipality in Delaware permitted to collect a local earned income tax. Tax-Rates.org lists the rate at a flat 1.25%, and USAPaycheck.org says it applies whether you live inside the city and commute to Newark, or live outside the city and commute into it. If your home address is inside city limits, the tax follows your paycheck no matter where you work.
Run the arithmetic on an ordinary household income. On $70,000 in earned wages, 1.25% comes to $875 a year, every year, for as long as the address stays inside city limits. For a resident earning that salary, it's a recurring bill, not a closing cost, and it applies regardless of where the job is located.
The tax isn't a rounding error for the city either. Wage and net profits taxes together make up more than 41% of Wilmington's general fund revenue, ahead of property tax as the single largest source of money that keeps the city running. That's useful context for a buyer weighing whether the tax might quietly disappear in a future budget cycle. It won't. The city depends on it too heavily to let it go.
The 2025 Reassessment and Ongoing Review
Delaware's property values hadn't been reassessed in more than four decades until New Castle County completed its court-ordered reassessment in 2025. Spotlight Delaware reported that the new numbers landed unevenly, and Wilmington absorbed more of the shock than most of the county.
Here's the shift, in the county's own terms:
| Measure | Before reassessment | After reassessment |
|---|---|---|
| Residential share of county tax burden | About 66% | About 76% |
| Amazon's overall tax bill | About $3.5 million | About $1 million |
| Combined tax cut across 17 downtown office buildings (including space leased by JPMorgan Chase, Barclays, and M&T Bank) | — | Nearly $5 million shed |
Homeowners in some Wilmington neighborhoods saw increases running into the thousands of dollars, while the office towers downtown got smaller bills under the reassessment vendor's income-based approach to commercial space. State Rep. Cyndie Romer put the criticism plainly at a legislative hearing in November 2025, saying the process gave breaks to the largest corporations while overassessing the city's poorest communities.
Mayor John Carney's administration has since tried to fix it from the inside out. In September 2025, the city announced a plan to hire a third-party firm to conduct interior inspections on a block-by-block basis in neighborhoods that residents and officials believe were assessed too high, with the goal of presenting corrected numbers back to the county. The reassessment vendor's own report had already acknowledged the data collected in Wilmington fell outside normal industry standards, in part because so little of it came from actually seeing inside the homes being valued.
As of the most recent public reporting, that correction effort was still underway and roughly 3,900 appeals from the original reassessment remained unresolved. None of this means Wilmington property taxes are broken. It means a buyer looking at a resale listing today should ask a very specific question: is this parcel's current assessment the one on record before the county's review, or has it already been adjusted, and is another adjustment still possible. That's not a question you'd need to ask about a home in unincorporated New Castle County, where the reassessment produced its own new flat rate and was not part of the same city-specific review of accuracy.
One Zip Code, Two Very Different Markets
There's a second layer to the "Wilmington median" that has nothing to do with tax policy and everything to do with geography getting flattened by a mailing address.
ZIP code 19807 sits at the high end of the city's price range, and depending on which tracker you check, its median home value runs somewhere between roughly $895,000 and $960,000. But look at the actual school addresses inside that ZIP code and you'll find some listed under "Wilmington, DE 19807" and others, a few miles apart, listed under "Greenville, DE 19807." The postal service itself can't cleanly separate the two names inside one ZIP code, which is a fair proxy for how blurry the line is between the incorporated city and the unincorporated county land that borders it along Kennett Pike.
Compare that to ZIP 19802, where the median listing price sat around $225,000 as of June 2026. Same city name on the envelope. Almost nothing else in common.
| ZIP 19807 | ZIP 19802 | |
|---|---|---|
| Approximate median home value | $895,000–$960,000 | ~$225,000 (median listing, June 2026) |
| Character | Larger lots, older housing stock, borders Greenville along Kennett Pike | Dense, walkable, closer to downtown |
| USPS city designation | Mix of "Wilmington" and "Greenville" | Wilmington |
A citywide median gets calculated by blending both of these markets into one number, which means the "Wilmington median" you see on a national portal describes neither of them particularly well. It's a blended figure standing in for two different buying decisions.
What This Actually Changes If You're Comparing Wilmington To The Suburbs
None of this is an argument against buying in Wilmington. It's an argument for pricing the full picture before you compare a Wilmington number to a Greenville or Hockessin number on a spreadsheet.
Before you treat a lower Wilmington price as the more affordable option, confirm a few things:
- Whether the parcel sits inside city limits or just shares a ZIP code with the city. Addresses in 19807 in particular can fall on either side of that line; the wage tax can apply based on where you live or work, while only one side carries the city's own property tax rate on top of the county rate.
- Where the property's assessment stands in the post-2025 review. Ask whether the current tax bill reflects the original reassessment, a completed appeal, or a still-pending block-by-block correction the city has proposed for that neighborhood.
- Whether you or your household will earn income while living at that address or working inside the city. The wage tax can apply to earned income based on where you live or work, so retirees or households living mostly on investment income face a different calculation than a dual-income working household would.
- What the property is actually being compared against. A $225,000 home in 19802 and a $450,000 home in Hockessin aren't just different price points. The 19802 home may also have a still-unsettled assessment history; buyers of either home may owe Wilmington wage tax depending on where they live or work.
None of these questions show up on a listing sheet. They show up in county records, city correspondence, and a conversation with someone who knows which blocks in Wilmington are still waiting on their corrected numbers.
A Few Straight Answers
Do I pay the Wilmington wage tax if I live in the city but work in Newark or Pennsylvania? Yes. Residency is what triggers the tax on your earned income, not where your job happens to be located. The reverse is also true: if you live outside the city but work inside it, your employer withholds the same 1.25% regardless of your home address.
Is the reassessment issue actually resolved at this point? Bills went out with the new values in 2025 and legislative hearings on the process continued into that November. The city's own plan to correct disputed valuations, block-by-block interior review, was still in its early stages as of the most recent public updates. Anyone buying a Wilmington property should treat the current tax bill as a snapshot, not a permanent number, until that review runs its course.
Does a 19807 address mean I'm buying in Greenville instead of the city? Not necessarily. The ZIP code spans both, and the mailing address alone won't tell you which side of the city line a specific parcel sits on. That's a question for the title work and the county parcel record, not the envelope.
Comparing Wilmington to the suburbs around it is a reasonable way to shop. Just make sure you're comparing full carrying costs, not just the number on the first page of the listing. If you want a second set of eyes on a specific Wilmington address before you write an offer, including where it sits relative to the city line and what its assessment history looks like, Diego Reyes & Associates is glad to help you work through it. Let's Work Together.
This article is general information, not legal, tax or financial advice. Consult a qualified professional about your situation.
