The Data-Defined Map of American Retirement Towns

Nobody maintains an official registry of retirement towns, so we built one from the data. We took every US place with at least 10,000 residents and asked a simple question: is the majority of the population 55 or older? Exactly 81 towns clear that bar — and at the top of the list the numbers stop looking like age structure and start looking like a category error. In Laguna Woods, CA, 96.4% of all residents are 55 or older; in Sun City West, AZ it is 96.2%. For comparison, the national figure is 29.9%.

The geography is exactly what the snowbird stereotype predicts, but with precision the stereotype lacks: Florida alone accounts for 39 of the 81 towns, Arizona for 18 more. The full list is below.

All 81 Majority-55+ Towns

Limited to places with at least 10,000 residents.

Source: U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates.

Built, Not Grown

The most extreme entries share a defining trait: they were designed this way. Master-planned, age-restricted communities — the model pioneered at Sun City, Arizona in 1960 — legally require most residents to be over 55, which is how a town reaches shares above 90% that no naturally aging city could. The upper tier of this list is, in effect, a census of that industry, from Arizona's desert Sun Cities to the vast golf-cart metropolis of central Florida.

Further down sit the organic retirement towns: coastal and lakeside communities that seniors chose one household at a time. Their shares hover in the 50–65% range rather than 90%, their age restrictions are informal (a housing stock and price point that suits retirees), and their populations still include working families — often the people staffing the healthcare and service economies the retirees sustain.

The Economics of a 55+ Majority

Retirement towns run on a different economic engine. Median household incomes on this list are mostly modest — retirement income is lower than peak-career income — yet many of these towns pair those incomes with substantial home values and near-zero unemployment among those who do work. Labor-force participation is structurally low, which is worth remembering when comparing them to conventional cities on income rankings: a low income figure here signals life stage, not hardship. The state-level version of this age story is in the oldest states ranking.

How We Did This Analysis

We computed the share of residents aged 55 and older (ACS age brackets 55–74 plus 75+) for every US place with at least 10,000 residents and kept those at 50% or above. The ACS brackets we use cannot isolate 65+, so 55+ is the cleanest available cutoff for "retirement-age concentration"; it slightly widens the net to include late-career residents.

All figures come from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. Because estimates pool five years of survey responses, small differences between closely ranked entries may fall within the survey's margin of error. Learn more on our methodology page or at data.census.gov.