NAICS Code 4911: Postal Service
The NAICS code for Postal Service is 4911.
Postal Service establishments operate the US Postal Service's universal delivery network, collecting, sorting, and delivering letters, packages, and periodicals to every US address six days per week. The USPS serves as last-mile infrastructure for e-commerce delivery and provides essential communication services to rural and low-income communities.
Postal Service falls under the NAICS code for NAICS 491 — Postal Service, a subsector of Transportation and Warehousing.
20,000
Total US Entities
1
NAICS Industries
4911
NAICS Code
Classification
NAICS Industries (5-digit)
| NAICS Code | Industry Title | US Entities |
|---|---|---|
| 49111 | NAICS 49111 — Postal Service | 20,000 |
NAICS 2022
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Working with legacy records? convert a NAICS code to SIC using the mapping table — NAICS 2022 at the five-digit industry level paired with SIC 1987 four-digit industries, with coverage gaps stated.