53033 FipsDecoder
02150 County FIPS Code

Kodiak Island Borough

Alaska · County seat: Kodiak · Active county or equivalent

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FIPS code 02150 is Kodiak Island Borough, Alaska. With a population of 13,065 (2022 ACS estimate), it ranks #8 in Alaska and #2274 nationally. The state FIPS code for Alaska is 02. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

02150

State FIPS

02

AK

Population

13,065

2022 ACS · #2274 nationally

Density

2.0/mi²

people per sq mile

Land Area

6,550

sq miles

Urban/Rural

Nonmetro — urban 2.5K–19.9K, not adjacent to metro

RUCC 7

How This FIPS Code Works

02 150
02 = State FIPS (Alaska)
150 = County FIPS

The 5-digit FIPS code 02150 is formed by combining the 2-digit state identifier 02 (Alaska) with the 3-digit county identifier 150. Together they uniquely identify Kodiak Island Borough in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 02150

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 02150.

Median Household Income

$91,138

ACS B19013_001E

Poverty Rate

8.0%

ACS B17001 (below poverty level)

Median Age

35.1

ACS B01002_001E

Adjacent Counties (2)

Counties that share a border with Kodiak Island Borough. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 02150.

Federal Datasets Using Code 02150

FIPS code 02150 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 02150 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 02150
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:150",
    "in":   "state:02",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Kodiak Island Borough, Alaska, income, pop, ...]
SQL — filtering by county FIPS 02150
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '02150';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '02'
  AND county_fips = '150';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 2150 is WRONG for this county
R — tidycensus 02150
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "02",
  county    = "150",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 02 (not 2) and 150 (not 150) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

ZIP Codes in Kodiak Island Borough

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 Kodiak Island Borough. Why FIPS ≠ ZIP →

ZIP Code % in county
99550 100.0%
99608 100.0%
99615 100.0%
99624 100.0%
99643 100.0%
99644 100.0%

Other Counties in Alaska