Atlantic County
New Jersey · County seat: Mays Landing · Active county or equivalent
FIPS code 34001 is Atlantic County, New Jersey. With a population of 274,339 (2022 ACS estimate), it ranks #15 in New Jersey and #252 nationally. Atlantic County is part of the Atlantic City-Hammonton, NJ. The state FIPS code for New Jersey is 34. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
34001
Population
274,339
2022 ACS · #252 nationally
Density
493.7/mi²
people per sq mile
Land Area
556
sq miles
Urban/Rural
Metro — 250K–1M population
RUCC 2
How This FIPS Code Works
The 5-digit FIPS code 34001 is formed by combining the 2-digit state identifier 34 (New Jersey) with the 3-digit county identifier 001. Together they uniquely identify Atlantic County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 34001
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 34001.
Median Household Income
$73,113
ACS B19013_001E
Poverty Rate
13.0%
ACS B17001 (below poverty level)
Median Age
42.0
ACS B01002_001E
Metropolitan Area
Adjacent Counties (6)
Counties that share a border with Atlantic County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 34001.
Federal Datasets Using Code 34001
FIPS code 34001 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 34001 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:001",
"in": "state:34",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Atlantic County, New Jersey, income, pop, ...]
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '34001';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '34'
AND county_fips = '001';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 34001 is WRONG for this county
library(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "34",
county = "001",
year = 2022
)
ZIP Codes in Atlantic 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 Atlantic County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 08406 | 100.0% |
| 08330 | 100.0% |
| 08341 | 100.0% |
| 08346 | 100.0% |
| 08350 | 100.0% |
| 08401 | 100.0% |
| 08402 | 100.0% |
| 08403 | 100.0% |
| 08201 | 100.0% |
| 08203 | 100.0% |
| 08205 | 100.0% |
| 08217 | 100.0% |
| 08221 | 100.0% |
| 08225 | 100.0% |
| 08232 | 100.0% |
| 08234 | 100.0% |
| 08240 | 100.0% |
| 08241 | 100.0% |
| 08244 | 100.0% |
| 08310 | 100.0% |
| 08317 | 100.0% |
| 08319 | 100.0% |
| 08326 | 100.0% |
| 08037 | 80.0% |
| 08215 | 54.7% |
| 08360 | 25.9% |
| 08270 | 22.3% |
| 08340 | 18.8% |
| 08094 | 10.2% |
| 08344 | 8.7% |