St. Johns County FL Information


St. Johns County Subdivisions

St. Johns County FL Data & Demographics (As of July 1, 2017)


Total Population 238,439
Daytime Population: Workers 78,234
Daytime Population: Residents 133,351
Total Daytime Population (TDP) 211,585
Ratio TDP/Total Population1 0.89
Population in Households 235,549
Population in Familes 192,953
Population in Group Qrtrs 2,890
Population Density2 397
Diversity Index3 37


Median Household Income $67,745
Average Household Income $99,604
Per Capita Income $39,376


Total Housing Units 109,637 (100%)
Owner Occupied HU 68,185 (62.2%)
Renter Occupied HU 25,127 (22.9%)
Vacant Housing Units 16,325 (14.9%)
Median Home Value $294,971
Average Home Value $372,337


Total Households 93,312
Average Household Size 2.52
Family Households 64,285
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 3.18% 3.18%
Households 3.0% 3.08%
Families 2.91% 3.02%
Median Household Income   2.76%
Per Capita Income   2.41%


St. Johns County FL - Peer Comparisons by Rank and Percentile

The table below compares St. Johns County to the other 67 counties and county equivalents in Florida by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 24 66th
Population Density # 18 75th
Diversity Index # 56 18th
Median Household Income # 1 100th
Per Capita Income # 2 99th

Additional comparisons and rankings can be made with a VERY EASY TO USE Florida Census Data Comparison Tool.