Is Washington growing?

How much Washington, DC has grown or shrunk since 2015, how that compares with the county, the state and the United States, and how the community's age is changing.

U.S. Census Bureau, American Community Survey 5-year estimates.

This story was assembled using AI and public data sources.

Washington looks different than it did in 2015.

Population change since 2015: +3.8% — 647,484 residents in 2015 → 672,079 in 2023

Washington population, 2015 to 2023

• 2015: 647484
• 2023: 672079

Growth since 2015

• Washington: 3.8
• District of Columbia: 3.8
• DC: 3.8
• U.S.: 5

Median age: 34.9 — U.S. median: 38.7

What it means

Washington is growing more slowly than the country — +3.8% here versus +5.0% nationally since 2015.

Residents here are younger than the country overall — the median resident is about 3.8 years younger than the U.S. median.

These are estimates, not a head count. ACS 5-year figures average responses collected over five years, so they show direction and scale rather than a single day's population.