Carroll County
Georgia · County seat: Carrollton · Active county or equivalent
FIPS code 13045 is Carroll County, Georgia. With a population of 120,060 (2022 ACS estimate), it ranks #20 in Georgia and #523 nationally. Carroll County is part of the Atlanta-Sandy Springs-Roswell, GA. The state FIPS code for Georgia is 13. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
13045
Population
120,060
2022 ACS · #523 nationally
Density
240.6/mi²
people per sq mile
Land Area
499
sq miles
Urban/Rural
Metro — 1M+ population
RUCC 1
How This FIPS Code Works
The 5-digit FIPS code 13045 is formed by combining the 2-digit state identifier 13 (Georgia) with the 3-digit county identifier 045. Together they uniquely identify Carroll County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 13045
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 13045.
Median Household Income
$66,895
ACS B19013_001E
Poverty Rate
16.9%
ACS B17001 (below poverty level)
Median Age
35.2
ACS B01002_001E
Metropolitan Area
Adjacent Counties (8)
Counties that share a border with Carroll County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 13045.
Federal Datasets Using Code 13045
FIPS code 13045 appears as the county identifier in the following federal datasets. Analysts joining data across these sources use this code as the common geographic key.
Using FIPS Code 13045 in Code
Common patterns for querying federal datasets by this county's FIPS code. The leading zeros are significant — always treat FIPS codes as strings, not integers.
import requests
url = "https://api.census.gov/data/2022/acs/acs5"
params = {
"get": "NAME,B19013_001E,B01003_001E",
"for": "county:045",
"in": "state:13",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Carroll County, Georgia, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '13045';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '13'
AND county_fips = '045';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 13045 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "13",
county = "045",
year = 2022
)ZIP Codes in Carroll County
ZIP codes do not align perfectly with county boundaries — a single ZIP code can span multiple counties, and a county can contain parts of many ZIP codes. The ratios below (from the Census 2020 ZCTA relationship file) show the land area share of each ZCTA that falls within Carroll County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 30117 | 100.0% |
| 30116 | 100.0% |
| 30118 | 100.0% |
| 30108 | 96.4% |
| 30185 | 95.5% |
| 30182 | 63.4% |
| 30180 | 62.6% |
| 30170 | 52.1% |
| 30179 | 51.6% |
| 30110 | 10.6% |
| 30187 | 1.5% |