53033 FipsDecoder
06061 County FIPS Code

Placer County

California · County seat: Auburn · Active county or equivalent

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FIPS code 06061 is Placer County, California. With a population of 406,608 (2022 ACS estimate), it ranks #22 in California and #173 nationally. Placer County is part of the Sacramento-Roseville-Folsom, CA. The state FIPS code for California is 06. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.

County FIPS

06061

State FIPS

06

CA

Population

406,608

2022 ACS · #173 nationally

Density

289.0/mi²

people per sq mile

Land Area

1,407

sq miles

Urban/Rural

Metro — 1M+ population

RUCC 1

How This FIPS Code Works

06 061
06 = State FIPS (California)
061 = County FIPS

The 5-digit FIPS code 06061 is formed by combining the 2-digit state identifier 06 (California) with the 3-digit county identifier 061. Together they uniquely identify Placer County in every US federal dataset. No two counties share the same 5-digit FIPS code.

Census ACS Data for FIPS 06061

From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 06061.

Median Household Income

$109,375

ACS B19013_001E

Poverty Rate

6.8%

ACS B17001 (below poverty level)

Median Age

42.3

ACS B01002_001E

Metropolitan Area

Adjacent Counties (8)

Counties that share a border with Placer County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 06061.

Federal Datasets Using Code 06061

FIPS code 06061 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 06061 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 06061
import requests

url = "https://api.census.gov/data/2022/acs/acs5"
params = {
    "get":  "NAME,B19013_001E,B01003_001E",
    "for":  "county:061",
    "in":   "state:06",
    "key":  "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json()  # [[header...], [Placer County, California, income, pop, ...]
SQL — filtering by county FIPS 06061
-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '06061';

-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '06'
  AND county_fips = '061';

-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 6061 is WRONG for this county
R — tidycensus 06061
library(tidycensus)

get_acs(
  geography = "county",
  variables = c(income = "B19013_001E", pop = "B01003_001E"),
  state     = "06",
  county    = "061",
  year      = 2022
)
Zero-padding reminder: FIPS codes must always be stored and compared as zero-padded strings. 06 (not 6) and 061 (not 61) — losing the leading zeros is one of the most common data-join bugs in federal datasets. Full guide →

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

ZIP Code % in county
96141 100.0%
95603 100.0%
95604 100.0%
96148 100.0%
95631 100.0%
95648 100.0%
95650 100.0%
95658 100.0%
95661 100.0%
95663 100.0%
96146 100.0%
95677 100.0%
96143 100.0%
95681 100.0%
95701 100.0%
95703 100.0%
95713 100.0%
95714 100.0%
95715 100.0%
95717 100.0%
95722 100.0%
96145 100.0%
95736 100.0%
95746 100.0%
95747 100.0%
95765 100.0%
96140 100.0%
95678 100.0%
95602 78.9%
95728 76.7%

Showing top 30 of 34 ZIP codes by residential address share.

Other Counties in California