FIPS code 20123 is Mitchell County, Kansas. With a population of 5,829 (2022 ACS estimate), it ranks #59 in Kansas and #2817 nationally. The state FIPS code for Kansas is 20. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
20123
Population
5,829
2022 ACS · #2817 nationally
Density
8.3/mi²
people per sq mile
Land Area
702
sq miles
Urban/Rural
Nonmetro — completely rural
RUCC 9
How This FIPS Code Works
The 5-digit FIPS code 20123 is formed by combining the 2-digit state identifier 20 (Kansas) with the 3-digit county identifier 123. Together they uniquely identify Mitchell County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 20123
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 20123.
Median Household Income
$63,008
ACS B19013_001E
Poverty Rate
15.0%
ACS B17001 (below poverty level)
Median Age
41.9
ACS B01002_001E
Adjacent Counties (5)
Counties that share a border with Mitchell County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 20123.
Federal Datasets Using Code 20123
FIPS code 20123 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 20123 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:123",
"in": "state:20",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Mitchell County, Kansas, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '20123';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '20'
AND county_fips = '123';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 20123 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "20",
county = "123",
year = 2022
)ZIP Codes in Mitchell 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 Mitchell County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 67478 | 100.0% |
| 67420 | 93.5% |
| 67446 | 83.9% |
| 67452 | 55.6% |
| 67485 | 48.5% |
| 67430 | 36.9% |
| 67418 | 24.6% |