53033 FipsDecoder
35021 County FIPS Code

Harding County

New Mexico · County seat: Mosquero · Active county or equivalent

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FIPS code 35021 is Harding County, New Mexico. With a population of 671 (2022 ACS estimate), it ranks #33 in New Mexico and #3196 nationally. The state FIPS code for New Mexico is 35. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

35021

State FIPS

35

NM

Population

671

2022 ACS · #3196 nationally

Density

0.3/mi²

people per sq mile

Land Area

2,125

sq miles

Urban/Rural

Nonmetro — completely rural

RUCC 9

How This FIPS Code Works

35 021
35 = State FIPS (New Mexico)
021 = County FIPS

The 5-digit FIPS code 35021 is formed by combining the 2-digit state identifier 35 (New Mexico) with the 3-digit county identifier 021. Together they uniquely identify Harding County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 35021

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 35021.

Median Household Income

$39,489

ACS B19013_001E

Poverty Rate

14.3%

ACS B17001 (below poverty level)

Median Age

42.2

ACS B01002_001E

Adjacent Counties (5)

Counties that share a border with Harding County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 35021.

Federal Datasets Using Code 35021

FIPS code 35021 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 35021 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.

Census ACS API — Python 35021
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:021",
    "in":   "state:35",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Harding County, New Mexico, income, pop, ...]
SQL — filtering by county FIPS 35021
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '35021';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '35'
  AND county_fips = '021';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 35021 is WRONG for this county
R — tidycensus 35021
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "35",
  county    = "021",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 35 (not 35) and 021 (not 21) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Harding 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 Harding County. Why FIPS ≠ ZIP →

ZIP Code % in county
87733 100.0%
87743 100.0%
87730 100.0%
88426 65.7%
88410 38.6%
88415 15.8%
87746 5.7%

Other Counties in New Mexico