Decatur, Georgia Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Decatur, GA Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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A+
Health Top grade
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A+
Income Top grade
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A+
Education Top grade
Source: Map AI Methodology
Population
| Metric | Decatur | Georgia Avg | U.S. Average |
|---|---|---|---|
| Population | 24,556 | 10,939,918 | 337,468,954 |
| Population density (per sq mi) | 5325.7 | 184.0 | 86.4 |
| Population growth (%/yr) | 1.63% | 1.01% | 0.59% |
| Median age | 40.8 | 35.2 | 37.3 |
| Households | 9,528 | 4,074,039 | 130,235,071 |
Population in Decatur grew by 22.4% from 2009 to 2024, reaching 24,556 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Decatur is Gen X, aged 45–60, at 22.7% of residents. That is 2.1 points above Georgia as a whole.
- Gen Z 13–28 4,346 17.7% -5.0 pts
- Millennials 29–44 5,472 22.3% -0.2 pts
- Gen X 45–60 5,578 22.7% +2.1 pts
- Boomers 61–79 3,212 13.1% -1.7 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Georgia, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 54.7% of the people living in Decatur and men 45.3%.
- Women 54.7% Georgia 51.2%
- Men 45.3% Georgia 48.8%
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Economy
Decatur has a the economy index of A+, which means it is exceptionally prosperous.
| Metric | Decatur | Georgia Avg | U.S. Average |
|---|---|---|---|
| Median household income | $137,669 | $77,523 | $80,455 |
| Income growth (%/yr) | 7.02% | 5.33% | 4.80% |
| Unemployment rate | 4.4% | 5.1% | 5.2% |
The median household income in Decatur is about 78% higher than in Georgia.
Housing
| Metric | Decatur | Georgia Avg | U.S. Average |
|---|---|---|---|
| Median home price | $357,347 | $256,986 | $248,835 |
| Median rent | $1,596 | $1,392 | $1,407 |
| Homeownership rate | 65.0% | 65.7% | 65.2% |
The median home price in Decatur is about 18.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,596 per month for that long.
Commute Time & Mobility
Commuters in Decatur spend about 48 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 200 hours, about 8.3 full days, spent commuting.
| Metric | Decatur | Georgia Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 24.0 | 23.6 | 22.4 |
| Round-trip commute (min) | 48.0 | 47.3 | 44.8 |
| Yearly time spent (hours) | 200 | 197 | 187 |
| Estimated yearly cost | $6,196 | $6,109 | $5,790 |
| Work from home | 37.3% | 15.9% | 15.0% |
| Highway traffic (vehicles/day) | 46,822 | 11,986 | 8,813 |
| Local road traffic (vehicles/day) | 3,406 | 1,447 | 1,355 |
The average commute time in Decatur is about the same as in Georgia.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Decatur has a education index of A+, which means it is exceptionally educated.
| Metric | Decatur | Georgia Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 68.8% | 30.7% | 31.6% |
| Average household size | 2.50 | 2.62 | 2.53 |
Health
Decatur has a health index of A+, which means it is exceptionally healthy.
| Metric | Decatur | Georgia Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 80.0 | 75.8 | 78.3 |
| Self-rated poor health | 8.5% | 20.0% | 16.3% |
| Smokers | 9.7% | 22.0% | 19.0% |
Frequently Asked Questions
Common questions about Decatur, Georgia.
How many people live in Decatur, Georgia?
About 24,556 people live in Decatur, Georgia, in 9,528 households of 2.5 people on average. The median age is 40.8, so residents are older than the U.S. median of 37.3 by about 3 years.
How densely populated is Decatur, Georgia?
Averaged over its land area, Decatur, Georgia has 5,326 people per square mile, a density typical of a city. That is about 62 times the U.S. average of 86.
How affordable is housing in Decatur, Georgia?
The median home costs 2.6 times the median household income ($357,347 against $137,669), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,596 a month takes about 14% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How common is a college degree in Decatur, Georgia?
68.8% of adults in Decatur, Georgia hold a bachelor's degree or higher (about 7 in 10), well above the U.S. share of 31.6%.
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