Living in Callahan, Florida
Callahan is a town in Nassau County, with about 1,514 people.1 It feels small-town or low-density suburban, at 838 people per square mile.1,3
Small place: Census estimates for places under 5,000 people have wide margins of error. Treat these figures as rough.
Nearest 24-hour emergency room
Shands Jacksonville, in Jacksonville, about 19 miles away.2
Straight-line distance from the town's center; driving is longer. Freestanding ERs and urgent care aren't counted.
Life in Northeast Florida
Florida's northeast corner: Jacksonville, the state's biggest city, with Navy bases, a busy port and the Atlantic beaches; St.4
Hazards: Hurricanes and river flooding. In September 2017 Hurricane Irma caused record floods in Jacksonville, the worst since 1846, mostly from the St. Johns River rather than a direct hit.4,5
Visitor information
Nassau County's official tourism office: Amelia Island (Nassau County).6 Ask about local events, things to do and a free visitor guide, if they offer one.
Read the free Northeast Florida preview, including the region's state-certified visitor centers.
The full Callahan town card
Choosing Your Place has the complete card for Callahan and 779 other places:
- How its home values, rent, age and income compare with the rest of Northeast Florida
- Household income, and how many ER hospitals are within 15 miles
- The nearest airline airport and the nearest big airport
- The full region profile, side-by-side compare and the monthly-cost calculator
Other places in Nassau County
- Yulee · 16,648 people · home value $302,500
- Fernandina Beach · 13,420 people · home value $555,400
- Nassau Village-Ratliff · 4,737 people · home value $253,000
- Hilliard · 3,034 people · home value $239,500
"Median" means half are above and half below. Figures are U.S. Census Bureau estimates for Callahan as a Census-defined place; the area a mailing address calls Callahan can be larger.
Notes
- U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024
- CMS Hospital General Information (Care Compare)
- U.S. Census Bureau, 2024 Gazetteer files (places)
- Jacksonville climate, 1991–2020 normals (Wikipedia, from NOAA)
- St. Johns County QuickFacts (U.S. Census Bureau)
- County tourism office websites, each opened or confirmed 2026-11-05