A city can lead a percentage-growth ranking while another adds more residents. This comparison card helps readers keep the measure, boundary and dates attached to a population claim. Read the full U.S. city-growth guide for context.
Two measures, two questions
| Measure | Calculation | Question |
|---|---|---|
| Residents added | End population − start population | How many residents were added? |
| Percentage growth | Residents added ÷ start population × 100 | How large was the gain relative to the starting population? |
Worked example: fictional cities
| Place | Start | End | Added | Growth |
|---|---|---|---|---|
| Small city A | 20,000 | 24,000 | 4,000 | 20% |
| Large city B | 800,000 | 820,000 | 20,000 | 2.5% |
City A grows faster by percentage; City B adds more residents. Neither measure alone explains the cause of growth or establishes which city needs more services.
Real Census comparison: July 2024 to July 2025
The Census Bureau’s Vintage 2025 release, published May 14, 2026, compares July 1, 2024 with July 1, 2025. Among cities with at least 20,000 residents at the start of that period, Charlotte, North Carolina, led numeric gains with 20,731 additional residents. Celina, Texas, led percentage growth at 24.6%.
These are city-level population estimates, not a metro-area ranking, forecast, or a new October release. The fictional table above illustrates the formulas and does not reproduce Charlotte or Celina populations.
Download the source-list comparison
Download the free city-growth comparison workbook (Excel, 9 KB) to compare the Census Bureau’s published top 15 percentage-growth leaders with its top 15 numeric-gain leaders. It includes source notes, starting-population arithmetic for the numeric list and cross-list rank lookups. An “outside top 15” label is not an exact national rank. This is a WorldLensia compilation with AI assistance, using Census Vintage 2025 estimates for July 1, 2024–July 1, 2025 and the 20,000-resident starting threshold.
Six checks before sharing a ranking
- Name the geography: city proper, county or metro area.
- Show both comparison dates.
- State numeric change or percentage change.
- Keep the minimum population threshold attached.
- Use the same estimate vintage for both endpoints; later releases revise earlier estimates.
- Separate estimated change from explanations, predictions and policy conclusions.
Caption for an accurate comparison
“Fastest-growing” needs a measure and a time window. A smaller city may grow faster in percentage terms while a larger city adds more residents. Check the boundary, starting population and estimate vintage before comparing headlines.
Source and attribution
Primary source: U.S. Census Bureau, Vintage 2025 city and town population release, May 14, 2026, Tables 3 and 4 and technical notes. Checked October 23, 2026. Credit Census for the estimates; credit WorldLensia for this explanatory card. Source inclusion does not imply Census endorsement.
Prepared for WorldLensia with AI assistance. Editorial questions: info@worldlensia.com.
Before comparing places, check City vs Metro Population: Why the Boundary Changes the Answer and Net Migration vs Population Growth: Account for Inflows and Outflows.