Housing density

#14 of 500 by model importanceInteger · persons/mi²

Estimates the number of housing units per square mile in the immediate area around an individual's address. Known or imputed for 117.1 million addresses — 97.7% of the addresses Faraday knows.

At a glance

Coverage today
97.7%
Typical coverage
97.5%
Addresses with a value
117.1M
Median
488 persons/mi²
Most values come
from the address
Latest collection
Jan 1, 2020

Distribution

How values are spread across the records that have one. Use it to check that the attribute tells records apart: when one value holds nearly everyone, it will not separate audiences much. The bars run in rank order, from the lowest value to the highest. The shading groups the bars into percentile bands.

Share by value

n = 117,057,254

Share of addresses with a known value in each band. The middle 50% falls between 100 and 1,530 persons/mi², shaded darkest.

P10
27
P25
100
Median
488
P75
1,530
P90
2,488

P10 means 10% of addresses have a value at or below this one, and P90 means 90% do. P25 and P75 bound the middle half. The median is the middle: half are below it, half above.

Coverage

How widely Faraday has this attribute, and how precise its values are. How many of your own records get a value also depends on how many of them Faraday matches. The state map shows where coverage is thin. Coverage over time shows whether it is growing or shrinking.

Coverage by state

Percentage of addresses in each state with a value.

Coverage over time

97.7% today

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

Jan 20Jun 24Feb 25Jun 25Nov 25Mar 26Oct 26

How we arrive at a value

Latest collection: 119,356,740 addresses

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.

catalog min 0%max 100%

Higher coverage than 82% of address-level attributes in the catalog

Freshness

Whether the values reflect today. A long gap since the latest collection means they may lag behind what is true now.

Collections

How recently this was collected, and how often a new collection arrives. Each bar is one collection, sized by how many addresses it carried. Gaps are real — collection is periodic, not continuous.

Jan 1, 2020
latest collection
81 months 24 days
since the latest collection
Jan 20

Contribution ledger

1 ingestion

1 authority contributed since Jan 2020.

ObservedIngestedCountID
119,016,289dd311395-716d-40ea-98f2-81aeadd883f8

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 Housing density back in real time.

  1. Add housing_density to a project.
  2. Send an email, phone, or address to the project's append endpoint. The response carries Housing density 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":{"housing_density":488}}
Get it by APIAppend to a fileRead the API docs

Technical details

null in any row means the label does not apply, or is not recorded, for this attribute.

API name
The field to request through the API, and the key it comes back under in a payload.
housing_density
Category
The catalog group the attribute is filed under.
fig/demography
Type · unit
The kind of value and, where it has one, its unit of measure. Counts on this page are in addresses, whatever the unit.
Integer · persons/mi²
Statistical type
How the values are meant to be read: a measured amount, one of a ranked set, one of an unordered set, or several from an unordered set. The chart's form comes from the published values; for categories without a rank prefix, this label decides whether they are listed in rank order or by size.
ordinal
Allowed values
The full list of values, when the attribute has a fixed set.
null
Derivations
How the value is produced, each with its definition.
null
How values combine
How the values from the attribute's sources become the one value delivered.
Read from a single source field.
Directionality
For ordered values, what a higher value means.
null
Deprecation
True when the attribute is being retired; choose another for new work.
false
API reference