Middletown, Delaware — City Overview

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Living in Middletown, summers are hot, with Jul highs around 87.5°F, while winters are chilly, with Jan lows around 29.4°F. Winter heating is a real budget factor — 3943 degree days means 4-5 months of meaningful energy bills. Annual rainfall reaches 55.4 inches, mostly summer thunderstorms. Within 5 miles: 26 parks, 3 groceries, 17 dining spots and 5 schools. One hospital serves the immediate area. Median household income: $104,662. With a 6.8% poverty rate and 73.3% homeownership, the community reflects a stable residential mix. Air quality is Moderate — avg AQI 56 over the past week.

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Updated October 10, 2026.

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