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Newcastle, ME ZIP code

The ZIP code for Newcastle, Maine is 04553. It is in Lincoln County.

Population in these ZIPs
1,913
Avg. median income
$89,900population-weighted
Typical home value
$461,400population-weighted
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ZIP codes within 10 miles

Newcastle, ME ZIP code list

Newcastle, ME ZIP codes
ZIP codePopulationMedian incomeTypical home value
045531,913$89,868$461,400

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Newcastle

Frequently asked questions

What is the ZIP code for Newcastle, ME?

The ZIP code for Newcastle, ME is 04553.

What county is Newcastle, Maine in?

Newcastle ZIP codes are in Lincoln County.