FIPS code 51155 is Pulaski County, Virginia. With a population of 33,841 (2022 ACS estimate), it ranks #51 in Virginia and #1362 nationally. Pulaski County is part of the Blacksburg-Christiansburg-Radford, VA. The state FIPS code for Virginia is 51. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
51155
Population
33,841
2022 ACS · #1362 nationally
Density
105.8/mi²
people per sq mile
Land Area
320
sq miles
Urban/Rural
Metro — under 250K population
RUCC 3
How This FIPS Code Works
The 5-digit FIPS code 51155 is formed by combining the 2-digit state identifier 51 (Virginia) with the 3-digit county identifier 155. Together they uniquely identify Pulaski County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 51155
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 51155.
Median Household Income
$59,740
ACS B19013_001E
Poverty Rate
13.1%
ACS B17001 (below poverty level)
Median Age
47.2
ACS B01002_001E
Metropolitan Area
Adjacent Counties (7)
Counties that share a border with Pulaski County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 51155.
Federal Datasets Using Code 51155
FIPS code 51155 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 51155 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:155",
"in": "state:51",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Pulaski County, Virginia, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '51155';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '51'
AND county_fips = '155';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 51155 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "51",
county = "155",
year = 2022
)ZIP Codes in Pulaski 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 Pulaski County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 24301 | 100.0% |
| 24058 | 100.0% |
| 24129 | 100.0% |
| 24132 | 100.0% |
| 24347 | 87.2% |
| 24324 | 75.7% |
| 24084 | 74.5% |
| 24141 | 47.3% |
| 24313 | 10.3% |