Key facts: Middletown
- Middletown had about 6,200 residents in 2000 and an estimated 24,000 by 2021, thanks to annexations that made it known as Delaware's fastest-growing area.[1]
- Our coverage also takes in Odessa, Townsend, Port Penn and Saint Georges.
- Young homes fail in their own ways: a nail through a supply line, an upstairs laundry pan that was never connected, a loose fitting behind a wall.
New construction still leaks
Young homes fail in their own ways: a nail through a supply line, an upstairs laundry pan that was never connected, a loose fitting behind a wall. Because finished floors sit above finished ceilings, an upstairs leak can damage two rooms before anyone sees it. If your home is under a builder warranty, photograph and report before work starts.
A closer look in Middletown

Older ground to the east
Port Penn and Saint Georges sit closer to the Delaware River and the C&D Canal,[3] so storm tide and flood mapping matter more there than in the newer subdivisions to the west. Check your own address rather than the town's reputation.
Flood claims recorded in New Castle County
Middletown sits in New Castle County. FEMA publishes every National Flood Insurance Program claim with personal details removed, which gives a plain record of where water has reached insured buildings here.
| Measure | Count |
|---|---|
| Flood insurance claims on record | 1,575 |
| Year with the most claims | 2003 (263) |
| Largest named event | Hurricane Floyd (210) |
| Claims outside high-risk A and V zones | 32% |
| Claims on buildings built before 1975 | 80% |
County-wide counts of insured claims only. Uninsured losses, burst pipes and appliance leaks are not in this data.
What the Middletown claim record shows
For Middletown homes, the local precedents are the events behind the most New Castle County claims: Hurricane Floyd (210 claims), Hurricane Irene (144 claims) and Hurricane Ida (90 claims).
About 32% of claims with a recorded zone came from outside the high-risk A and V zones, so a moderate-risk label does not mean a Middletown home stays dry.
If your Middletown home is older, note that buildings from before 1975 make up 80% of county claims with a known build date. Many predate current flood maps, so inspect low outlets, ductwork and subfloors closely after any water event.
Federal disaster history for New Castle County
FEMA lists 17 federal declarations covering New Castle County. The most common types are hurricane (9), snowstorm (4) and biological (2). The latest are Remnants of Hurricane Ida in 2021, Tropical Storm Isaias in 2020 and Covid-19 Pandemic in 2020. If your loss falls inside an open declaration, Middletown homeowners can check DisasterAssistance.gov as well as their insurance policy.
Middletown weather and your home
Weather records for Middletown from 2015 through 2024 average 53 inches of precipitation a year, and August and July are the wettest months. The area averages 11.9 days a year with an inch or more.
Middletown falls to 20°F or below on about 12 nights a year, which puts pipes in exterior walls, crawl spaces and garages at risk.
When rain falls in Middletown
Seasonal averages for Middletown, 2015 through 2024. Plan roof, gutter and sump pump checks before the wettest stretch.
| Season | Average | Share of year |
|---|---|---|
| January to March | 11.5 in | 22% |
| April to June | 13.9 in | 26% |
| July to September | 16.1 in | 30% |
| October to December | 11.8 in | 22% |
Modeled from Open-Meteo historical weather data. Precipitation includes rain and melted snow.
Middletown home checklist from these records
- Don't rely on recent quiet years. Only 15% of New Castle County claims date from 2015 or later, so older floods still show what can happen.
- Insulate exposed pipes before 12-plus hard-freeze nights arrive, and know your main shutoff.
- Test any sump pump before August, since Middletown averages 12 days a year with an inch or more.
- Keep dated photos of each room. After Hurricane Floyd, 210 insured New Castle County owners filed claims at about the same time.
What to tell the Middletown contractor
- Whether the home is under builder warranty
- Whether the leak is upstairs
- Which community you are in
Services Middletown callers ask about
Questions
Middletown water damage questions
Will a builder warranty cover my leak?
Possibly, depending on the cause and the warranty terms. Contact the builder and photograph everything, but still stop the water and start drying.
How quickly should I act?
Drying within 24 to 48 hours is the EPA's target, whatever the age of the house.[2]

