City rankings

Youngest Cities in Maine

Biddeford ranks #1 in Maine for youngest cities at 35.0 yrs.

This ranking orders all 12 qualifying Maine cities by median age, computed from the named federal field or time-series described below. It is one of 9 transparent ranking lenses Areazine publishes for Maine, each answering one direct question from official data. Compare Biddeford's standing against every other Maine city ranked below.

Data updated 2026-08-21

12
Cities ranked
35.0 yrs
#1 Biddeford
44.9 yrs
Lowest, Saco

What this Maine ranking shows

According to the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, the CDC PLACES population-level health analysis, and the CMS Hospital Compare quality data, Areazine ranks U.S. cities across more than 19,000 incorporated places, census-designated places, and consolidated city-county governments. State-level city rankings combine these federal datasets to produce intra-state comparisons across demographics, economics, health outcomes, and hospital quality.

Biddeford leads 12 Maine cities at 35.0 yrs, while Saco sits at the bottom with 44.9 yrs - a total spread of 9.9 yrs on median age. The top 5 occupy 28% of that range, indicating a moderate distribution with meaningful steps between rungs.

The median Maine city in this list sits at 40.9 yrs, 5.9 yrs behind Biddeford. See our methodology for ranking construction, data vintage, refresh cadence, and the federal upstream tables we join, and triangulate via the 8 other Maine rankings below, cities that lead on multiple lenses are the most robust signals.

Top 5 - Youngest Cities

Top 5 Maine cities ranked by median age
Rank City median age Population
#1 Biddeford 35.0 yrs 21K
#2 Waterville 35.5 yrs 16K
#3 Lewiston 37.3 yrs 36K
#4 Westbrook 37.4 yrs 18K
#5 Portland 37.8 yrs 67K

Does median age track with city size?

Youngest Cities vs. population, top 25 ranked cities

Source: U.S. Census Bureau (population), median age per methodology 2×2 strategic matrix plotting 12 entities by Population (X) and median age (Y), with a crosshair dividing the plot into four quadrants. Large & highSmall & highLarge & lowSmall & low 020,00040,00060,00080,000 3035404550 Population median age BiddefordWatervilleLewistonWestbrookPortlandBrunswickSouth PortlandBangorAuburnSanfordAugustaSaco
Source: U.S. Census Bureau (population), median age per methodology

Youngest Cities 12

More Maine Rankings 8

Reading this Maine ranking responsibly

Single-metric rankings are useful precisely because they are honest about what they measure. A "highest income" ranking does not tell you that the top-ranked city is the best place to live in Maine; it tells you that, among cities of population ten thousand and above in Maine that have a published median household income field in the most recent American Community Survey five-year estimates, this city has the highest such value. That precise definition matters, because composite "best places" lists from real-estate marketing sites and lifestyle magazines often combine income with subjective weights on schools, walkability, and amenities, producing a score whose components are not disclosed and whose ordering is not reproducible. Areazine's editorial commitment is to keep the underlying field, source, and vintage visible so the reader can audit any rank in this list against the canonical federal record.

Cross-checking against other rankings is a useful sanity test. A city that appears in the top ten on three or more different rankings, for example, highest income, most educated, and lowest poverty, is showing a robust signal across multiple independent dimensions. A city that appears in the top ten on only one ranking and middling on the others is showing a narrower signal, often driven by a single statistical artifact (a small population pulling the per-capita measure, a recent acquisition spike inflating median home value, an outlier survey year). The other nine Maine rankings linked above provide that cross-check at zero extra effort.

Data Sources

Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates). Health data from the CDC PLACES (2023). Ranking computations use U.S. Census Bureau reference geographies. Crime statistics, where referenced, originate from the FBI Uniform Crime Reporting program (also accessible via the Crime Data Explorer).