ZIP Codes of Caldwell County, NC

Population & People
Population & People
Total Population
78,467
Household Income
Household Income
Median Income
$52,244
Housing
Housing
Total Housing Units
36,480
Business & Economy
Business & Economy
Total Businesses
1,380
Employment
Employment
Employment Rate
55.43%
Education
Education
Bachelor's Degree+
17.85%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 7 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:7 ZIP Codes (4 Standard, 2 PO Box, 1 Unique) [See All]
Area Code:828
Timezone:Eastern (GMT -05:00)
Local Time:11:54:14 PM
Population:78,467 [See All]
FIPS:37027
CBSA:Hickory-Lenoir-Morganton, NC
Land Area:482 sq mi
Water Area:2 sq mi
Coordinates:35.9080, -81.5167
Quick Link:
https://www.zip-codes.com/county/nc-caldwell.asp
Need Caldwell data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
North Carolina's #36 most populous county
78,467 residents across 7 ZIPs — #36 of 100 North Carolina counties.

Standout ZIPs in this County


Most Populous
Lenoir · 45,997 people
58.6% of county total
Highest Income
Hudson · $67,135 median
1.3× county average
Largest Land Area
Lenoir · 326.4 sq mi
Spans the most ground
Fastest Growth
Hudson · 6.0% (10-yr)
11,658 → 12,363 residents
Most Educated
Hudson · 18.6% bachelor's+
1,526 of 8,212 adults 25+

Things worth knowing about Caldwell County


78,467 residents live across 7 ZIPs covering 482 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 80,737 to 78,467 from 2014 to 2024 — a -2.8% change. 1 ZIPs gained residents, 4 lost.

The county's wealthiest ZIP 28638 (Hudson, $67,135 median) and poorest ZIP 28645 (Lenoir, $51,650) are 8.2 miles apart — a 1.3× income gap across local geography.

Median home values vary 1.2× across this county — from $175,500 in 28645 (Lenoir) to $207,500 in 28638 (Hudson).

Density varies 106× across the county — from 6 people/sq mi in 28611 (Collettsville) to 619 in 28638 (Hudson).

Educational attainment ranges from 17.7% bachelor's+ in 28645 (Lenoir) to 18.6% in 28638 (Hudson) — the breadth of educational profiles across the area.

Within North Carolina, this is the #36 most populous of 100 counties and ranks #84 for median household income .

Hosts 1 single-entity Unique ZIP: 28633Broyhill Furniture .

Weighted by population, the typical household earns about $57,032 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.9% of adults age 25+ hold a bachelor's degree or higher (10,189 of 57,075 reporting).

4 Standard delivery, 2 PO Box only, 1 single-entity Unique ZIPs serve this county.

All ZIP Codes in Caldwell County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
28645LenoirStandard45,997$51,650326.4-1.0%
28630Granite FallsStandard19,382$63,83563.2-6.5%
28638HudsonStandard12,363$67,13520.06.0%
28611CollettsvilleStandard42472.6-65.4%
28667RhodhissPO Box301$26,3540.2-53.0%
28633LenoirUnique0.0
28661PattersonPO Box0.0

Adjacent & Nearby Counties