Nearest airport

Text

Identifies the FAA / IATA code of the airport closest to the surrounding postcode (any size, including general-aviation fields). Known or imputed for 31,079 postcodes — 91.1% of the postcodes Faraday knows.

At a glance

Coverage today
91.1%
Typical coverage
91.1%
Postcodes with a value
31.1K
Share in largest category
0.093%
Most values come
from the area
Latest collection
May 13, 2026

How the categories split

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. Categories are ranked by share, largest first.

Share by category

n = 31,079

Share of postcodes in each category.

No single value is common: at least 99 distinct values, the largest holds 0.093% of postcodes with a value, and the 20 largest together hold 0.9%.

Show the 20 most common
6N5
0.093%
6NY5
0.074%
6N6
0.068%
NJ54
0.068%
JY29
0.051%
7NY7
0.051%
3NY2
0.045%
JRB
0.042%
4NY9
0.039%
US-6413
0.039%
07NJ
0.035%
4MA8
0.035%
KRHV
0.035%
RI15
0.035%
CA26
0.035%
NK39
0.035%
NK30
0.032%
93NY
0.032%
6N7
0.032%
6NK5
0.032%
Distinct categories
99+
Share in largest category
0.093%
Share in top 3 categories
0.2%

Every category

99+ categories

The 20 most common are listed above. Search here for any other. This list holds the 100 most common; rarer values are not named.

  • 6N50.093%29 postcodes
  • 6NY50.074%23 postcodes
  • 6N60.068%21 postcodes
  • NJ540.068%21 postcodes
  • JY290.051%16 postcodes
  • 7NY70.051%16 postcodes
  • 3NY20.045%14 postcodes
  • JRB0.042%13 postcodes
  • 4NY90.039%12 postcodes
  • US-64130.039%12 postcodes
  • 07NJ0.035%11 postcodes
  • 4MA80.035%11 postcodes
  • KRHV0.035%11 postcodes
  • RI150.035%11 postcodes
  • CA260.035%11 postcodes
  • NK390.035%11 postcodes
  • NK300.032%10 postcodes
  • 93NY0.032%10 postcodes
  • 6N70.032%10 postcodes
  • 6NK50.032%10 postcodes
  • CA630.032%10 postcodes
  • 9VA20.032%10 postcodes
  • US-51970.032%10 postcodes
  • 96NY0.032%10 postcodes
  • IL700.029%9 postcodes
  • 2PS90.029%9 postcodes
  • 72VA0.029%9 postcodes
  • 81CL0.029%9 postcodes
  • NY470.029%9 postcodes
  • KFRG0.026%8 postcodes
  • 8CA90.026%8 postcodes
  • 15MI0.026%8 postcodes
  • 2NK80.026%8 postcodes
  • 39NY0.026%8 postcodes
  • JRA0.026%8 postcodes
  • 10PN0.026%8 postcodes
  • KVLL0.026%8 postcodes
  • IL770.026%8 postcodes
  • 2WI30.026%8 postcodes
  • US-39050.023%7 postcodes

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 by state

Percentage of postcodes in each state with a value.

How we arrive at a value

Latest collection: 41,117 postcodes

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 — 0%
Not used for this attribute — no value is inherited this way.
From geography — 100%
Estimated from other people in their postcode or region.

Coverage, in context

Where 91.1% sits on the catalog’s own coverage range.

catalog min 11%max 100%

Higher coverage than 28% of postcode-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 postcodes it carried. Gaps are real — collection is periodic, not continuous.

May 13, 2026
latest collection
5 months 15 days
since the latest collection
May 26

Contribution ledger

1 ingestion

1 authority contributed since May 2026.

ObservedIngestedCountID
41,117d32d05d1-66af-4d5c-bb27-1784ffd9d1a4

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 Nearest airport back in real time.

  1. Add nearest_airport to a project.
  2. Send an email, phone, or address to the project's append endpoint. The response carries Nearest airport 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":{"nearest_airport":"6N5"}}
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.
nearest_airport
Category
The catalog group the attribute is filed under.
fig/reachability
Type · unit
The kind of value and, where it has one, its unit of measure. Counts on this page are in postcodes, whatever the unit.
Text
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.
nominal
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