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The Cecilia CDP⁽¹⁾ had a population of 1,742 as of 2020-2024 American Community Survey 5-Year Estimates.

The primary coordinate point for Cecilia is located at latitude 30.3371 and longitude -91.8532 in St. Martin Parish. The formal boundaries for the Cecilia Census Designated Place encompass a land area of 2.12 sq. miles and a water area of 0.02 sq. miles. St. Martin Parish is in the Central time zone (GMT -6).

The Cecilia Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Cecilia Census Designated Place is located within Parish Governing Authority District 9, a minor civil division (MCD) of St. Martin Parish.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

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Cecilia Demographic Data
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Cecilia, LA Data & Demographics

Source: 2020-2024 American Community Survey 5-Year Estimates

POPULATION
Total Population	1,742 (100%)
Population Density	822 per sq mi
Diversity Index¹	48


INCOME
Median Household Income	$67,109
Per Capita Income	$24,805
Median Home Value	$0

HOUSING
Total HU (Housing Units)	758 (100%)
Owner Occupied HU	388 (51.2%)
Renter Occupied HU	147 (19.4%)
Vacant Housing Units	223 (29.4%)

HOUSEHOLDS
Total Households	535
Average Household Size	3.26
Family Households	425 (79.4%)

NOTES

The Diversity Index estimates the likelihood that two persons chosen at random from the same area belong to different race or ethnic groups, based on five groups: Hispanic/Latino, Non-Hispanic White, Non-Hispanic Black, Non-Hispanic Asian, and Non-Hispanic Other/Multiracial. A value of 0 indicates the population belongs entirely to one group. Higher values indicate a more evenly mixed population. Calculated from U.S. Census Bureau ACS 5-year estimates (table B03002).

Cecilia, LA - Peer Comparisons by Rank and Percentile

The table below compares Cecilia to the other 489 incorporated cities, towns and CDPs in Louisiana by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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	# 213	57th
Population Density	# 159	68th
Median Household Income	# 146	70th
Per Capita Income	# 299	39th
Diversity Index	# 203	59th

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

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Cecilia, LA Profile: Facts & Data

Cecilia, Louisiana - Basic Facts

Cecilia, LA Data & Demographics

POPULATION

INCOME

HOUSING

HOUSEHOLDS

Cecilia, LA - Peer Comparisons by Rank and Percentile

Cecilia, LA - Most Popular Things to Do

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St. Martin Parish