Birthdate of child 1
Records the birth year and month of an individual's first child. Known or imputed for 35.4 million individuals — 13.7% of Faraday's identity graph.
35,390,622 people have this value. You only pay for people we match.
At a glance
- Coverage today
- 13.7%
- Typical coverage
- 13.8%
- Individuals with a value
- 35.4M
- Median
- Oct 2015
- Most values come
- from the person
- Latest collection
- Jun 1, 2026
When these dates fall
n = 35,390,622Share of individuals with a known date in each period. The middle 50% falls between May 2010 and Aug 2020, shaded darkest.
P10 means 10% of individuals have a date on or before this one, and P90 means 90% do. P25 and P75 bound the middle half. The median is the middle: half fall before it, half after.
Median over time
Sep 2015Oct 2012 → Sep 2015 across 12 collections, shaded between P25 and P75. Estimated from a 1% sample of individuals.
Coverage
Latest collection: 223,305,428 individualsCoverage by state
Percentage of individuals in each state with a value.
Coverage over time
13.7% todayShare of individuals 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 — 100%
- A named person, from a record about that person.
- From address — 0%
- Not used for this attribute — no value is inherited this way.
- From geography — 0%
- Not used for this attribute — no value is inherited this way.
Coverage, in context
Where 13.7% sits on the catalog’s own coverage range.
Higher coverage than 32% of individual-level attributes in the catalog
Freshness
How recently this was collected, and how often a new collection arrives. Each bar is the number of individuals in that collection. Gaps are real — collection is periodic, not continuous.
Change between collections
The share of individuals whose date is different from the previous collection.
of individuals changed value between the two most recent collections — 10.6× steadier than the catalog median of 16.0%.
Contribution ledger
14 ingestions1 authority contributed since Jul 2023.
| Observed | Ingested | Count | ID |
|---|---|---|---|
| 263,433,649 | 74d6c94c-8e2b-48fe-a704-50c99ad3cdde | ||
| 266,506,942 | c5492806-a892-460e-aba1-ee78ffb29c5b | ||
| 264,096,977 | 1181277b-b751-4a59-aae1-101fa3f55375 | ||
| 264,777,400 | af53c569-4fe2-4282-975b-4cbf5f85692d | ||
| 268,508,091 | 84d6a1c5-d142-4a4d-9cb3-902de4c82c30 | ||
Related attributes
Attributes whose descriptions are closest to this one.
Use it in the API
Send an email, phone, or address. Get Birthdate of child 1 back in real time.
- Add
birthdate_of_child_1to a project. - Send an email, phone, or address to the project's append endpoint. The response carries Birthdate of child 1 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":{"birthdate_of_child_1":"2009-05-01"}}Technical details
- API name
- birthdate_of_child_1
- Category
- fig/demography
- Type · unit
- Date
- Statistical type
- interval
- Allowed values
- null
- Derivations
- Declared
- — the attribute is self-reported by the person.
- How values combine
- Read from a single source field.
- Directionality
- null
- Deprecation
- false