ZIP Codes of Caledonia County, VT

Population & People
Population & People
Total Population
30,233
Household Income
Household Income
Median Income
$80,163
Housing
Housing
Total Housing Units
15,926
Business & Economy
Business & Economy
Total Businesses
899
Employment
Employment
Employment Rate
61.65%
Education
Education
Bachelor's Degree+
33.95%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 22 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:22 ZIP Codes (16 Standard, 6 PO Box, 0 Unique) [See All]
Area Code:802
Timezone:Eastern (GMT -05:00)
Local Time:11:55:34 PM
Population:30,233 [See All]
FIPS:50005
Land Area:615 sq mi
Water Area:9 sq mi
Coordinates:44.4423, -72.0839
Quick Link:
https://www.zip-codes.com/county/vt-caledonia.asp
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Wide geographic spread
ZIPs range from 93.4 sq mi down to 0.96 — a 97× sprawl ratio.
Striking education divide
Bachelor's share spans 22.9% to 54.6% — a 32-point gap.

Standout ZIPs in this County


Most Populous
Saint Johnsbury · 9,106 people
30.1% of county total
Highest Income
Peacham · $122,917 median
1.5× county average
Largest Land Area
Saint Johnsbury · 93.4 sq mi
Spans the most ground
Fastest Growth
Groton · 11.0% (10-yr)
1,118 → 1,241 residents
Most Educated
East Hardwick · 52.6% bachelor's+
589 of 1,119 adults 25+

Things worth knowing about Caledonia County


30,233 residents live across 22 ZIPs covering 615 sq mi, served by 22 distinct USPS-recognized cities.

Population moved from 30,613 to 30,233 from 2014 to 2024 — a -1.2% change. 11 ZIPs gained residents, 6 lost.

The county's wealthiest ZIP 05862 (Peacham, $122,917 median) and poorest ZIP 05819 (Saint Johnsbury, $62,411) are 10.0 miles apart — a 2.0× income gap across local geography.

Median home values vary 2.1× across this county — from $160,000 in 05866 (Sheffield) to $334,200 in 05862 (Peacham).

Density varies 32× across the county — from 19 people/sq mi in 05046 (Groton) to 593 in 05050 (Mc Indoe Falls).

Educational attainment ranges from 22.9% bachelor's+ in 05843 (Hardwick) to 54.6% in 05069 (South Ryegate) — the breadth of educational profiles across the area.

Within Vermont, this is the #9 most populous of 14 counties and ranks #10 for median household income .

Weighted by population, the typical household earns about $71,594 across the county — reflecting what a typical resident sees, not a simple ZIP average.

34.0% of adults age 25+ hold a bachelor's degree or higher (7,515 of 22,135 reporting).

16 Standard delivery, 6 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Caledonia County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
615
square miles
Avg density
49.2
people per sq mi
Population
30,233
across 22 ZIPs
Saint Johnsbury
93.4 sq mi
9,106 residents
Lyndonville
73.9 sq mi
6,024 residents
Groton
66.0 sq mi
1,241 residents

All ZIP Codes in Caledonia County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
05819Saint JohnsburyStandard9,106$62,41193.4-6.4%
05851LyndonvilleStandard6,024$68,48873.9-10.6%
05843HardwickStandard2,198$71,81849.1-19.5%
05828DanvilleStandard2,092$72,12154.05.3%
05836East HardwickStandard1,531$99,92933.453.3%
05871West BurkeStandard1,524$74,57239.7-3.1%
05046GrotonStandard1,241$84,37566.011.0%
05821BarnetStandard1,109$65,68234.12.9%
05832East BurkeStandard969$86,85025.318.0%
05873West DanvilleStandard864$70,28826.630.9%
05069South RyegateStandard778$66,44217.626.1%
05866SheffieldStandard684$64,60935.711.6%
05867SuttonStandard634$67,96933.3-19.2%
05042East RyegateStandard602$96,25028.726.7%
05862PeachamStandard361$122,9172.5-2.7%
05850Lyndon CenterStandard3071.066.8%
05050Mc Indoe FallsPO Box209$107,8800.447.2%
05848Lower WaterfordPO Box0.0
05861PassumpsicPO Box0.0
05838East Saint JohnsburyPO Box0.0
05863Saint Johnsbury CenterPO Box0.0
05849LyndonPO Box0.0

Adjacent & Nearby Counties