County id

county_idGeographyText

Numeric code for the county containing the individual's address (see County code for the FIPS form). Known or imputed for 117.0 million addresses — 98.6% of the addresses Faraday knows.

At a glance

Coverage today
98.6%
Typical coverage
98.0%
Addresses with a value
117.0M
Share in largest category
2.4%
Most values come
from the address
Latest collection
Jan 1, 2020

How the categories split

n = 116,977,501

Share of addresses in each category. 99+ categories, of which the 20 largest are shown, with 2.4% in the largest.

06037
2.4%
17031
1.5%
04013
1.3%
48201
1.2%
06073
0.8%
06059
0.8%
12086
0.8%
32003
0.7%
48113
0.7%
53033
0.7%
36047
0.6%
12011
0.6%
48439
0.6%
26163
0.6%
06065
0.6%
48029
0.6%
36061
0.6%
36081
0.5%
25017
0.5%
12099
0.5%
All other values
83.5%
Distinct categories
99+
Share in largest category
2.4%
Share in top 3 categories
5.1%

Every category

99+ categories

The chart above draws the 20 largest. Search here for one it does not. This list holds the 100 most common; rarer values are not named.

  • 060372.39%2,799,746 addresses
  • 170311.46%1,705,128 addresses
  • 040131.28%1,501,551 addresses
  • 482011.23%1,440,622 addresses
  • 060730.85%991,629 addresses
  • 060590.78%912,091 addresses
  • 120860.76%889,657 addresses
  • 320030.71%831,449 addresses
  • 481130.68%800,748 addresses
  • 530330.66%766,952 addresses
  • 360470.65%757,616 addresses
  • 120110.64%745,960 addresses
  • 484390.61%710,805 addresses
  • 261630.61%708,444 addresses
  • 060650.60%706,415 addresses
  • 480290.58%679,372 addresses
  • 360610.55%646,305 addresses
  • 360810.50%588,193 addresses
  • 250170.50%581,519 addresses
  • 120990.49%573,120 addresses
  • 120570.48%557,154 addresses
  • 421010.47%554,685 addresses
  • 060710.47%551,309 addresses
  • 060850.46%542,240 addresses
  • 390350.46%538,117 addresses
  • 390490.45%528,788 addresses
  • 120950.44%515,811 addresses
  • 261250.43%508,842 addresses
  • 420030.43%504,395 addresses
  • 060010.42%493,799 addresses
  • 060670.41%483,544 addresses
  • 361030.41%480,143 addresses
  • 270530.40%470,193 addresses
  • 371190.39%456,876 addresses
  • 371830.39%454,403 addresses
  • 484530.38%448,027 addresses
  • 360590.36%424,775 addresses
  • 121030.36%421,220 addresses
  • 120310.34%400,208 addresses
  • 480850.33%387,313 addresses

Coverage

Latest collection: 119,389,496 addresses

Coverage by state

Percentage of addresses in each state with a value.

Coverage over time

98.6% today

Share of addresses holding a value at each monthly snapshot. A value carries forward for one year.

Jan 20Mar 24Dec 24Mar 25Jun 25Oct 25May 26

How we arrive at a value

Whether a value was observed on the person themselves, carried from their address, or estimated from the people around them.

On the person — 0%
Not used for this attribute — no value is inherited this way.
From address — 100%
Carried from what we know about the household at their address.
From geography — 0%
Not used for this attribute — no value is inherited this way.

Coverage, in context

Where 98.6% sits on the catalog’s own coverage range.

catalog min 0%max 100%

Higher coverage than 83% of address-level attributes in the catalog

Freshness

How recently this was collected, and how often a new collection arrives. Each bar is the number of addresses in that collection. Gaps are real — collection is periodic, not continuous.

Jan 1, 2020
latest collection
81 months 3 days
since the latest collection
Jan 20

Contribution ledger

1 ingestion

1 authority contributed since Jan 2020.

ObservedIngestedCountID
2020-01-012026-04-20119,048,853e84435bf…

Technical details

API name
county_id
Category
fig/geography
Type · unit
Text
Statistical type
categorical
Allowed values
null
Derivations
Unspecified
Directionality
null
Deprecation
false

In a payload

{
  "attributes": {
    "county_id": "06037"
  }
}