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Census Data for Lafayette

Population ...

The most recent Census Estimate<1> was for 2019 and it gave Lafayette a population of 126,306 people.

The last Decennial Census<2> was in 2010, which gave Lafayette a population of 120,623 people.

The city of Lafayette is located in Lafayette Parish. The 2010 Census gave Lafayette Parish; a population of 222,315 people. This means that Lafayette had 54.3% of the parish's total population, making it Lafayette's most populous community.

At the same time, Louisiana had a population of 4,533,372 people, meaning that Lafayette had 2.66% of the total population of Louisiana - making it the state's 4th most populous community.

Area ...

The 2010 Census shows that the sampling area for Lafayette has a total area of 49.35 square miles [127.8 km²]. Of this total, a small amount of the area is covered by water (0.12 square miles [0.3 km²]).

Lafayette Parish has a land area of 268.7 square miles [696 km²]. At 49.23 square miles [127.5 km²], Lafayette has 18.32% of the parish's total land area.

  • Continue Reading ...
    • When the Census Bureau conducts a census for a city like Lafayette, they draw a boundary around the area in which they are going to conduct their count - this defines the sampling area (usually a polygon). The shape of the sampling area can be quite complex and it's important to keep in mind that the boundaries of the sampling area may or may not match the recognized boundaries of the city.
    • Things like population, area and housing for Lafayette reflect the sampling area. Since the shape of the sampling area and the actual boundaries of Lafayette might be different, it's best to check with the U.S. Census Bureau to resolve any difference between the two.
    • Not only does the sampling area define boundaries, it also has a GPS location (latitude & longitude) that indicates a point within the sampling area (usually the center of the polygon, known as the centroid). At the time of the 2010 Census, the sampling area was located at:
    • Lat:   30° 12' 41"   (or 30.21°)
    • Lon:   -92° 1' 53"   (or -92.03°)
    • More information on this topic and the changes between the 2000 Census and the 2010 Census can be found in the section for our Census-to-Census Observations ... (see below).

Housing Units ...

At the time of the 2010 Census, Lafayette had 53,356 Housing Units<3> and with its population of 120,623 people, this averages 2.26 people per Housing Unit.

  • Continue Reading ...
    • The 2010 Census shows Lafayette had a land area of 49.23 square miles [127.5 km²]. This translates to 1,081 Housing Units per square mile [417.4 housing units/km²].
    • From the Census of 2000: Lafayette had 46,865 Housing Units, a population of 110,257 people and a land area of 47.59 square miles [123.3 km²]. This gives a density of 2.35 people per Housing Unit and 982 Housing Units per square mile [379.5 housing units/km²].
    • Note: Repeating the caution above (under Population Density), be aware that when comparing Housing Units between the 2010 Census and the 2000 Census, there were changes in the sampling area for Lafayette and you need to be careful when comparing numbers between the censuses. More information about the nature of these the changes can be found in the section called Census-to-Census Observations ... (see below).

Lafayette Parish ...

The community of Lafayette is located in Lafayette Parish<4> and is the Parish Seat for Lafayette Parish.

The county had a population of 222,315 people at the 2010 Census. With it's population of 120,623 people, Lafayette represented 54.3% of the parish's total.

In addition, where the city of Lafayette has a population density of 2,444 people per square mile [943 people/km²], Lafayette Parish averages 827 people per square mile [319.4 people/km²].

For more information, please visit our Census Page for Lafayette Parish.

Census-to-Census Observations ...

Introduction ...

When the Census Bureau takes a census count (or enumeration) for Lafayette, they start by specifying the boundaries of the area to be counted. This area (or sampling area) is a polygon and its shape can be quite complex - it may or may not match the geographical boundaries of Lafayette. It's important to note that from one Census to the next, the shape and location of the polygon can change.

  • Continue Reading ...
    • Although we don't have specific information about the shape of the polygon for Lafayette or how it changed has over time, there is some information that can give us some hints. For example, since the shape of the sampling area is directly related to the shape of the polygon, any change to area probably indicates a new shape for the polygon.
    • If you need precision or details about the methodology of the Census, you should visit the U.S. Census Bureau for a definitive answer.

Location ...

While generally coinciding with the GPS location (latitude/longitude) of Lafayette, the latitude and longitude given by the Census Bureau actually indicates the GPS location of the polygon for Lafayette.

  • Continue Reading ...
    • For the 2010 Census, the location was given as:
    • Lat:   30.211573°   (or 30°12'41" N)
    • Lon:   -92.031394°   (or -92°1'53" W)
    • For the 2000 Census, the location given was:
    • Lat:   30.213901°   (or 30°12'50" N)
    • Lon:   -92.029363°   (or -92°1'45" W)
    • The difference indicates that the U.S. Census Bureau moved the location of the polygon for the 2010 Census 1,062 feet to the southwest<5> of the location that was used in the 2000 Census.
    • The U.S. Geological Survey (USGS) and the U.S. Board on Geographic Names (BGN) have assigned a unique GNIS identifier (#2404854) to Lafayette. This identifier also marks a GPS point on the map, and that point lies within the boundaries of Lafayette. The GNIS point has been mapped to the latitude/longitude:
    • Lat:   30.211989°   (or 30°12'43" N)
    • Lon:   -92.031677°   (or -92°1'54" W)
    • The GPS location given for the 2010 Census lies 175.9 feet to the southeast<6> of the point given by the GNIS for Lafayette. For more information about this and the relationship of the various Federal Codes, please visit our Misc Page for Lafayette.

Miscellaneous Information for Lafayette ...

The Federal government has assigned various identifying codes to each community, county, parish and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Lafayette Parish or the city of Lafayette:

  • The GNIS Codes ...
    • The current system of identification is called the Geographic Names Information System (GNIS). The following GNIS codes relate to Lafayette:
    • GNIS ID for Lafayette: 2404854
    • GNIS ID for Lafayette Parish: 558059
    • GNIS ID for State of Louisiana: 1629543
  • Misc. Census Codes ...
    • Lafayette is located in Census Region #3 (the South Region) and Division #7 (the West South-Central Division).
  • The US Postal Service ZIP Code ...
    • While some people have used ZIP codes to identify a community, the ZIP codes were actually created to make mail delivery more efficient by grouping addresses together. Although a ZIP Code doesn't specifically identify a city like Lafayette, they do identify addresses that are in (or near) the city. It's important to remember that the boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes.
    • Our list of ZIP codes for Lafayette:<7>
    • 70067, 70501, 70502, 70503, 70504, 70505, 70506, 70507, 70508, 70593, 70596 & 70598.
  • Census ZCTA Codes ...
    • The US Census Bureau created statistical entities that they call ZIP Code Tabulation Areas (ZCTAs) and these ZCTAs are frequently confused with the ZIP codes that come from the US Postal Service (USPS).
    • ZCTAs were first created for the 2000 Census and at that time, they were based upon the USPS ZIP codes. While largely covering the same areas, the boundaries of a ZCTA do not necessarily match the boundaries of a postal ZIP code with the same number. For example, while a postal ZIP code can cross a county or state line, a Census ZCTA can not. They should be treated as separate entities with no correlation between them.

For more information about the various Federal identification codes, please visit our Misc Page for Lafayette.

The official website for Lafayette: www.lafayettela.gov/

The official website for State of Louisiana: https://www.louisiana.gov/

The official website of the U.S. Census Bureau

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)

Footnotes ...

<1>Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<2>Every 10 years (eg- 1990, 2000, 2010), the US Census Bureau conducts a Constitutionally-mandated count (or enumeration) of people living within the United States. This count is called a Decennial Census. The last Decennial Census was the 2010 Census, with the next one planned for 2020.
<3>A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<4>If you're interested in how the shape of Louisiana's parishes, including Lafayette, have changed over time, we recommend the Atlas of Historical County Boundaries.
<5>The calculated bearing (or angle) to the 2010 Census location is 142 degrees and a distance of 1,062 feet.
<6>The calculated bearing (or angle) to the GNIS point is 210 degrees and a distance of 175.9 feet.
<7>When looking for a ZIP Code, whether Lafayette or elsewhere, it's always best to check the website of the United States Postal Service (USPS).









 

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This page was last modified/updated: 19 Sep 2024