County id
Numeric code for the county containing the individual's address (see County code for the FIPS form). Known or imputed for 117.1 million addresses — 97.7% of the addresses Faraday knows.
You only pay for people we match.
At a glance
- Coverage today
- 97.7%
- Typical coverage
- 97.6%
- Addresses with a value
- 117.1M
- Share in largest category
- 2.4%
- Most values come
- from the address
- Latest collection
- Jan 1, 2020
How the categories split
n = 117,084,035Share 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.
- 060372.4%2,810,534 addresses
- 170311.5%1,706,509 addresses
- 040131.3%1,501,593 addresses
- 482011.2%1,443,123 addresses
- 060730.8%993,183 addresses
- 060590.8%914,562 addresses
- 120860.8%891,143 addresses
- 320030.7%830,436 addresses
- 481130.7%802,073 addresses
- 530330.7%766,294 addresses
- 360470.6%758,139 addresses
- 120110.6%746,321 addresses
- 484390.6%711,096 addresses
- 060650.6%707,775 addresses
- 261630.6%707,742 addresses
- 480290.6%680,019 addresses
- 360610.6%646,529 addresses
- 360810.5%589,160 addresses
- 250170.5%580,662 addresses
- 120990.5%572,963 addresses
- 120570.5%556,535 addresses
- 421010.5%554,296 addresses
- 060710.5%553,102 addresses
- 060850.5%543,690 addresses
- 390350.5%538,007 addresses
- 390490.5%527,771 addresses
- 120950.4%515,248 addresses
- 261250.4%507,633 addresses
- 420030.4%503,799 addresses
- 060010.4%494,878 addresses
- 060670.4%484,651 addresses
- 361030.4%480,452 addresses
- 270530.4%468,781 addresses
- 371190.4%455,875 addresses
- 371830.4%452,770 addresses
- 484530.4%446,941 addresses
- 360590.4%424,870 addresses
- 121030.4%420,894 addresses
- 120310.3%399,518 addresses
- 291890.3%387,520 addresses
Coverage
Latest collection: 119,389,496 addressesCoverage by state
Percentage of addresses in each state with a value.
Coverage over time
97.7% 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 97.7% sits on the catalog’s own coverage range.
Higher coverage than 84% 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.
Contribution ledger
1 ingestion1 authority contributed since Jan 2020.
| Observed | Ingested | Count | ID |
|---|---|---|---|
| 119,048,853 | e84435bf-fdae-464b-ad1b-45a5aca06bc2 |
Related attributes
Attributes whose descriptions are closest to this one.
Neighbors found Oct 2026.
Use it in the API
Send an email, phone, or address. Get County id back in real time.
- Add
county_idto a project. - Send an email, phone, or address to the project's append endpoint. The response carries County id for the matched person.
curl -X POST 'https://api.pro.faraday.ai/v1/projects/YOUR_PROJECT_ID/append' \
-H 'Authorization: Bearer YOUR_API_KEY' \
-H 'Content-Type: application/json' \
-d '{
"email": "jane.doe@example.com"
}'→ {"attributes":{"county_id":"06037"}}Technical details
- API name
- county_id
- Category
- fig/geography
- Type · unit
- Text
- Statistical type
- categorical
- Allowed values
- null
- Derivations
- Unspecified
- How values combine
- Read from a single source field.
- Directionality
- null
- Deprecation
- false