Slidell, LA Profile: Facts, Map & Data


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Slidell, Louisiana - Basic Facts

The City of Slidell had a population of 28,378 as of July 1, 2016. Slidell ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Louisiana. See peer rankings below.

The primary coordinate point for Slidell is located at latitude 30.2893 and longitude -89.7833 in St. Tammany Parish. The formal boundaries for the City of Slidell (see map below) encompass a land area of 14.84 sq. miles and a water area of 0.36 sq. miles. St. Tammany Parish is in the Central time zone (GMT -6). The elevation is 3 feet.

The City of Slidell (GNIS ID: 2405470) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The City of Slidell is located within Parish Governing Authority District 14, a minor civil division (MCD) of St. Tammany Parish.

Beneath the boundary map are tables with Slidell population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Slidell, LA Boundary Map

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Boundary Maps: Parish Governing Authority District 14 | St. Tammany Parish | Louisiana Parishes

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Slidell, LA Data & Demographics (As of July 1, 2016)


Total Population 28,378
Population in Households 28,105
Population in Familes 23,278
Population in Group Qrtrs 273
Population Density1 1,912
Diversity Index2 50


Total Households 10,573
Average Household Size 2.66
Family Households 7,431
Average Family Size 3


Total Housing Units 11,730 (100%)
Owner Occupied HU 7,336 (62.5%)
Renter Occupied HU 3,237 (27.6%)
Vacant Housing Units 1,157 ( 9.9%)
Median Home Value $166,868
Average Home Value $179,489


Median Household Income $49,621
Average Household Income $65,256
Per Capita Income $24,727
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.76% 0.95%
Households 0.81% 1.0%
Families 0.63% 0.85%
Median Household Income   1.45%
Per Capita Income   1.63%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Slidell, LA - Peer Comparisons by Rank and Percentile

The table below compares Slidell to the other 474 incorporated cities, towns and CDPs in Louisiana by rank and percentile using July 1, 2016 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 # 17 97th
Population Density1 # 59 88th
Diversity Index2 # 196 59th
Median Household Income # 122 74th
Per Capita Income # 120 75th

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