Zip Code 30040
Cumming, Georgia — Forsyth County
📍 ZIP code 30040 is in Cumming, Forsyth County, Georgia.
ZIP code 30040 is located in Cumming, Forsyth County, Georgia. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 79,580. The area code for ZIP code 30040 is 404.
Quick Answer
Zip code 30040 is in Cumming, Georgia (Forsyth County). It has a population of 79,580, median household income of $133,028, and median home value of $474,400.
Population
79,580
Income
$133,028
Home Value
$474,400
Climate
89°F / 31°F
About Zip Code 30040
Zip code 30040 is located in Cumming, Georgia, within Forsyth County. Home to approximately 79,580 residents, this area sits at an elevation of 1299 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 404.
The median household income is $133,028 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $474,400, and the cost of living index is 160 (60% above the national average of 100).
Summers average a high of 89°F while winters drop to 31°F. The area receives about 56 in of rain and 1 in of snow annually. The zip code covers 58.9 square miles of land area and 0.5 square miles of water.
Key Statistics
79,580
$133,028
$474,400
Eastern (EST/EDT)
404
1299 ft
58.9 sq mi
39.1
27,642
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Compare With Nearby Zip Codes
| Metric | 30040 | 30041 | 30004 | 30005 | 30518 | 30024 |
|---|---|---|---|---|---|---|
| City | Cumming, GA | Cumming, GA | Alpharetta, GA | Alpharetta, GA | Buford, GA | Suwanee, GA |
| Population | 79,580 | 75,160 | 67,850 | 41,471 | 56,309 | 85,106 |
| Median Income | $133,028 | $141,825 | $147,996 | $170,951 | $97,339 | $139,918 |
| Home Value | $474,400 | $522,900 | $583,700 | $587,400 | $367,000 | $491,400 |
| Cost of Living | 160 | 173 | 186 | 204 | 120 | 168 |
| Median Age | 39.1 | 40.5 | 39.1 | 40.2 | 36.2 | 39.9 |
Cost of Living
100 = National Average. Cumming's cost of living is 60% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.6x
Demographics
Zip code 30040 has a population of 79,580 people with a median age of 39.1. There are 27,642 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Cumming (30040) population trend from 2010 to 2024
↓ -22.3%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
89°F
31°F
56 in
1 in
Cumming experiences warm summers with average highs around 89°F. Winters are cool with lows averaging 31°F. The area receives about 1 in of snow per year.
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Housing & Economy
Median Home Value
$474,400
Median Household Income
$133,028
With 27,642 housing units across 58.9 square miles, 30040 has a housing density of 469 units per square mile. The home price-to-income ratio is 3.6x.
Location & Geography
Latitude
34.2101°
Longitude
-84.1879°
Land Area
58.9 sq mi
Water Area
0.5 sq mi
Nearby Zip Codes
Zip codes closest to 30040 (Cumming, GA) with distances:
All Zip Codes in Cumming, GA
Other zip codes serving Cumming:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 30040's $133,028. A way to compare Cumming to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 30040 (Cumming, GA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Cumming, Georgia?
Cumming, Georgia uses zip code 30040 along with 1 other zip codes.
What county is zip code 30040 in?
Zip code 30040 is located in Forsyth County, Georgia.
What is the population of zip code 30040?
The population of zip code 30040 is 79,580 with a median age of 39.1.
Is 30040 in Cumming, Georgia?
Yes, zip code 30040 is in Cumming, Forsyth County, Georgia. The area code is 404.
Frequently Asked Questions
What city is zip code 30040 in?
Zip code 30040 is in Cumming, Georgia. It is part of Forsyth County and uses the Eastern (EST/EDT) timezone.
What is zip code 30040?
Zip code 30040 is a U.S. postal code in Cumming, Georgia (Forsyth County). It has a population of 79,580 and covers 58.9 square miles.
What is the population of zip code 30040?
The population of zip code 30040 (Cumming, GA) is 79,580 with a median age of 39.1. There are approximately 27,642 housing units in this area.
What is the median income in zip code 30040?
The median household income in zip code 30040 (Cumming, GA) is $133,028 per year. The cost of living index is 160 (100 = national average).
What is the average home price in zip code 30040?
The median home value in zip code 30040 (Cumming, GA) is $474,400. The cost of living index is 160 compared to the national average of 100.
What county is zip code 30040 in?
Zip code 30040 is located in Forsyth County, Georgia. The primary city is Cumming.
What is the area code for zip code 30040?
Zip code 30040 in Cumming, GA uses area code 404. It is located in the Eastern (EST/EDT) timezone.
Is zip code 30040 a good place to live?
Zip code 30040 (Cumming, GA) has a cost of living index of 160 (100 = national average), a median household income of $133,028, and median home values of $474,400. The median age is 39.1. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 30040?
The cost of living index for zip code 30040 (Cumming, GA) is 160, where 100 represents the national average. This area is above the national average. Median home value: $474,400.
What schools serve zip code 30040?
Zip code 30040 in Cumming, Georgia is served by the local school district of Forsyth County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.