Low Water Pressure in Wilmington, DE

Wilmington has 92,951 occupied homes across 25 ZIP codes, and the typical one was built in 1957. That year is the most useful single fact for working out why the water pressure is weak, because it predicts what the supply pipe is made of.
Wilmington sits 36 years older than the DE median of 1993. Of the 43 DE towns we route calls in, its housing is older than 95% of them, and by number of homes it ranks 1st.
What 1957 tells you about the pipe in Wilmington
Housing of this vintage generally means galvanized steel still the norm, with copper appearing towards the end of the decade. A house from these years may have had part of its supply replaced and part left alone, which is why pressure can be fine in one bathroom and poor in another. More on 1950s supply pipe.
65% of occupied homes in Wilmington are owner-occupied, 18 points below the DE figure of 83%. It matters here because the run between the meter and the house belongs to the property owner, not the utility.
Median household income across Wilmington ZIP codes is $86,114, 9% above the DE median of $79,100.
Before calling anyone in Wilmington, check whether every tap is weak or just one. Normal supply is 45–80 psi and under 40 psi is low — how to test it in a minute. Whole house is a supply problem worth a call; one tap is usually a five-minute job you can do yourself.
Build year and occupied homes by ZIP code in Wilmington
| ZIP | Typical build year | Occupied homes |
|---|---|---|
| 19801 | 1958 | 8,041 |
| 19802 | 1951 | 10,504 |
| 19803 | 1960 | 8,723 |
| 19804 | 1957 | 7,627 |
| 19805 | 1948 | 15,952 |
| 19806 | 1952 | 6,144 |
| 19807 | 1967 | 3,538 |
| 19808 | 1971 | 15,587 |
| 19809 | 1957 | 6,236 |
| 19810 | 1967 | 10,599 |
Nearby towns we cover
- Hockessin typical build 1984 · 27 years newer
- Middletown typical build 2005 · 48 years newer
- New Castle typical build 1971 · 14 years newer
- Odessa typical build 1952 · 5 years older
- Port Penn typical build 1938 · 19 years older
- Townsend typical build 2003 · 46 years newer
Worth reading for a 1957-era home
- galvanized supply pipe
- whole-house pressure loss
- pressure worse upstairs
- how to test your pressure
- low pressure on hot only
ZIP codes we route in Wilmington
- 19801
- 19802
- 19803
- 19804
- 19805
- 19806
- 19807
- 19808
- 19809
- 19810
- 19850
- 19880
- 19884
- 19885
- 19886
- 19890
- 19891
- 19892
- 19893
- 19894
- 19895
- 19896
- 19897
- 19898
- 19899
Low water pressure help near me in Wilmington
Give us your Wilmington ZIP code and what is happening. We check it against partner coverage and connect you with an independent contractor covering that area. We do not do the work and you are never charged.