Most Populated ZIP Codes in America

ZipFYI provides rankings and statistics for US ZIP codes including wealthiest ZIP codes by median income, most populated ZIP codes, most expensive by home value, most affordable, most densely populated, and largest by land area. All data comes from the US Census Bureau.

Rankings are calculated using Census Bureau data. ZIP codes are sorted by the relevant metric (income, population, home value, density, or area) and the top 100 are displayed. Only ZIP codes with valid data for the given metric are included in rankings.

Median household income is the income level at which half of households in a ZIP code earn more and half earn less. It is reported by the Census Bureau as part of the American Community Survey and is a key indicator of economic well-being in a geographic area.

Population density is calculated by dividing the total population of a ZIP code by its land area in square miles. This metric helps distinguish urban from rural areas and is used in planning, market analysis, and infrastructure decisions.

The most populated ZIP codes in the United States typically have populations exceeding 100,000 residents. These are usually found in dense urban areas of cities like New York, Houston, and Chicago. Check the Most Populated ZIP Codes ranking for current data.