Delaware ZIP codes

Delaware splits between a handful of population centres — 45% of its 1,006,247 counted residents live in the ten largest ZIP codes — and a long tail of smaller communities. 3 ZIP codes pass 50,000 residents, while 15 sit below a thousand. Half of these ZIP codes hold more than 10,145 residents, which is a small-town scale: big enough for published estimates, small enough that one employer or one subdivision moves the numbers.

On housing, Delaware tracks the national pattern closely: $296,650 median home value against $79,698 median income, a ratio of 3.7 versus 3.9 nationally. Median gross rent runs $1,306 including utilities, or about 20% of median household income annually. The statewide midpoint hides real variation, though — that is what the spread below is for.

Middle-of-the-road dispersion: $61,261 to $118,092 across the tenth-to-ninetieth percentile band, a 1.93× spread. 19732 tops the list at $250,001 and 19936 anchors the bottom at $35,556, but those two are not where most of this list sits.

About one row in 10 is incomplete — 7 of 68 ZIP codes have a suppressed estimate, almost all of them at the small end. Five-year estimates average responses over sixty months, so what is published is a stable baseline rather than a reading of this month's market.

How many ZIP codes does Delaware have? 68 appear in the current federal tabulation. ZIP code tabulation areas are the Census approximation of postal ZIP codes, so the count differs slightly from the number of ZIPs the Postal Service delivers to in Delaware, and PO-box-only ZIPs have no area at all.

Which Delaware row should I compare mine against? Pick ZIP codes within roughly the same population band. In a state this spread out, size drives the housing and income figures more than region does.

How current is this? Every figure comes from the American Community Survey 2019-2023 ACS 5-year release published by the US Census Bureau, ACS 2019-2023 5-year estimates. It reflects the full survey window rather than a single date, and it is the most recent vintage available for ZIP codes this small.