Jacksonville, Duval County
Call a local pro in Jacksonville
Jacksonville is by far the largest city in this set, with a 2020–2024 ACS population of 977,670. Winters are cool by Florida standards, and JEA water hardness changes sharply from one ZIP code to another.
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Services in Jacksonville
Plumbing
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JacksonvilleHVAC
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JacksonvilleRoofing
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JacksonvilleElectrical
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JacksonvilleWater Heater
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JacksonvillePest Control
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JacksonvilleGarage Door
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JacksonvilleAppliance Repair
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JacksonvilleWater Damage
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Local conditions that shape the work
American Community Survey 2020–2024 estimates put Jacksonville’s population at 977,670, with 430,825 housing units and a median year built of 1987. About 32% of units were built in 2000 or later, and about 19% were built before 1960.
Florida Climate Center 1991–2020 normals for Jacksonville International Airport show a July average high of 91.9°F, a January average low of 42.9°F, 2,803 cooling degree days, 1,228 heating degree days, and 53.4 inches of rain a year, with June the wettest month at 7.6 inches.
JEA. JEA publishes hardness by ZIP. Many Jacksonville city ZIPs are in the ‘very hard’ range. Downtown 32202 is listed at 239 ppm (14 grains per gallon). Some western ZIPs are lower; 32222 is listed at 128 ppm (8 grains per gallon).
Jacksonville is a First Coast city with a January average low of 42.9°F and 1,228 heating degree days. East-coast tropical cyclones can bring wind and rain during the June–November hurricane season.
The City of Jacksonville Building Inspection Division issues permits in Duval County’s consolidated city government.
Local numbers used on this page
| ACS 2020–2024 median year built | 1987 |
|---|---|
| Housing units | 430,825 |
| Population | 977,670 |
| Built 2000 or later | 32% |
| Built before 1960 | 19% |
| Climate station | Jacksonville International Airport 1991–2020 normals |
| July average high | 91.9°F |
| January average low | 42.9°F |
| Annual rainfall | 53.4 inches, wettest month June (7.6 inches) |
| Cooling / heating degree days | 2,803 CDD / 1,228 HDD |
| Published water hardness | varies by ZIP; examples include 239 ppm (14 gpg) in 32202 and 128 ppm (8 gpg) in 32222 |
Sources for local facts on this page
We used public records and official reports. We did not invent statistics, reviews, or licenses.
- Florida Climate Center, Jacksonville International Airport 1991–2020 normals
- U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, Jacksonville median year built 1987 and year-built counts, via Census Reporter
- JEA Water Hardness Levels by ZIP Code
- City of Jacksonville Building Inspection Division
- Jacksonville is a First Coast city with a January average low of 42.9°F and 1,228 heating degree days. East-coast tropical cyclones can bring wind and rain during the June–November hurricane season.
- Florida Department of Business and Professional Regulation, contractor licensing
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