County code
Indicates the FIPS code for the county or political jurisdiction of a given address. The first two digits represent the state code and the last three represent the county code. Known or imputed for 118.6 million addresses — 100.0% of the addresses Faraday knows.
At a glance
- Coverage today
- 100.0%
- Typical coverage
- 99.3%
- Addresses with a value
- 118.6M
- Share in largest category
- 2.4%
- Most values come
- from the address
- Latest collection
- May 1, 2026
How the categories split
n = 118,598,685Share of addresses in each category. 99+ categories, of which the 20 largest are shown, with 2.4% in the largest.
Every category
99+ categoriesThe 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%2,839,621 addresses
- 170311.46%1,728,728 addresses
- 040131.28%1,523,781 addresses
- 482011.23%1,458,668 addresses
- 060730.85%1,005,483 addresses
- 060590.78%925,434 addresses
- 120860.76%901,546 addresses
- 320030.71%841,657 addresses
- 481130.69%816,341 addresses
- 530330.66%780,891 addresses
- 360470.65%769,250 addresses
- 120110.64%755,520 addresses
- 484390.61%719,730 addresses
- 261630.60%715,374 addresses
- 060650.60%714,203 addresses
- 480290.58%689,712 addresses
- 360610.56%658,229 addresses
- 360810.50%596,360 addresses
- 250170.50%591,312 addresses
- 120990.49%579,898 addresses
- 120570.48%564,882 addresses
- 421010.48%563,507 addresses
- 060710.47%557,231 addresses
- 060850.46%550,135 addresses
- 390350.46%544,027 addresses
- 390490.45%535,239 addresses
- 120950.44%522,192 addresses
- 261250.43%513,893 addresses
- 420030.43%510,946 addresses
- 060010.42%500,322 addresses
- 060670.41%489,949 addresses
- 361030.41%485,135 addresses
- 270530.40%477,662 addresses
- 371190.39%463,825 addresses
- 371830.39%460,247 addresses
- 484530.39%459,231 addresses
- 360590.36%427,789 addresses
- 121030.36%427,223 addresses
- 120310.34%404,955 addresses
- 480850.33%392,740 addresses
Category shares over time
060372.4% (largest)The 5 largest categories, each followed across 12 collections. Estimated from a 1% sample of addresses.
Coverage
Latest collection: 137,136,830 addressesCoverage by state
Percentage of addresses in each state with a value.
Coverage over time
100.0% todayShare of addresses holding a value at each monthly snapshot. A value carries forward for one year.
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 100.0% sits on the catalog’s own coverage range.
Higher coverage than 97% 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.
Change between collections
The share of addresses whose category changed.
of addresses changed value between the two most recent collections — 1052.0× steadier than the catalog median of 13.5%.
Contribution ledger
17 ingestions
1 authority contributed since Jul 2023.
| Observed | Ingested | Count | ID |
|---|---|---|---|
| 2026-05-01 | 2026-07-01 | 125,639,012 | f9d55800… |
| 2026-04-01 | 2026-07-01 | 121,548,788 | 178f88a6… |
| 2026-03-01 | 2026-07-01 | 72,154,489 | a1e715b0… |
| 2026-02-01 | 2026-07-01 | 121,865,620 | b70b01b3… |
| 2026-01-01 | 2026-07-01 | 120,035,058 | 2786571a… |
Technical details
- API name
- county_code
- Category
- fig/geography
- Type · unit
- Text
- Statistical type
- nominal
- Allowed values
- null
- Derivations
- Derived
- — the attribute is computed from other known or declared fields.
- Observed
- — the attribute is directly observed.
- Directionality
- null
- Deprecation
- false
In a payload
{
"attributes": {
"county_code": "06037"
}
}