Geismar, LA Demographics

Population 10,417 · Census ACS 2020–24

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Geismar, LA map of median age by neighborhood
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Population and households in Geismar

Household size in Geismar

Household size, people per household
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–103.132.692.662.68
2010–142.922.682.642.73
2015–193.232.732.642.71
2020–243.172.632.592.65
Change+0.04−0.06−0.07−0.03
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Households in Geismar are large by national standards, averaging 3.17 people against 2.65 for the U.S. That usually means more families with children at home. Household size has crept up from 3.13 in 2006–10, even as the national average fell. Only one other Louisiana city with 5,000+ people has larger households.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Geismar

Median age, years
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–1031.235.336.837.7
2010–1434.236.237.438.6
2015–1936.936.838.339.6
2020–2435.837.139.040.1
Change+4.7+1.8+2.2+2.3
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With a median age of just 35.8, Geismar is far younger than the country as a whole (40.1), a population that tilts toward young families with children. The median age has climbed from 31.2 in 2006–10, mirroring the country. The youngest areas are in the west, the oldest in the southeast.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Geismar

Single-parent households, % of households
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–1016.0%14.1%14.7%12.3%
2010–146.3%14.8%15.1%12.3%
2015–1910.0%13.9%14.1%11.6%
2020–244.1%14.0%15.2%11.6%
Change−12.0 pts−0.0 pts+0.5 pts−0.6 pts
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Single-parent households are relatively rare in Geismar: 4.1% of households, against 11.6% nationally. The single-parent share is down 12.0 points from 2006–10, a much bigger shift than nationally. Of the 151 Louisiana cities with 5,000+ people, only two have a lower share of single-parent households.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Geismar

Renters in Geismar

Renters, % of occupied homes
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–1016.1%30.5%31.8%33.3%
2010–1418.6%31.4%33.7%35.6%
2015–1916.5%31.0%34.4%36.0%
2020–2413.0%30.9%32.6%34.8%
Change−3.1 pts+0.4 pts+0.9 pts+1.5 pts
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Only 13.0% of households in Geismar rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 23.8% have no mortgage at all, well below the national share of 39.8%. Since 2006–10, the renter share has fallen 3.1 points, even as the national share rose. Of the 151 Louisiana cities with 5,000+ people, only 14 have a lower share of renters.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Geismar

Vacant homes, % of all homes
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–106.8%10.9%13.9%11.4%
2010–145.5%11.2%13.1%11.4%
2015–195.9%15.6%15.1%11.1%
2020–247.0%14.1%14.4%9.6%
Change+0.2 pts+3.2 pts+0.5 pts−1.8 pts
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Fewer homes sit empty in Geismar than nationally: 7.0%, against 9.6% for the U.S. Geismar has a lower vacancy rate than at least four in five Louisiana cities.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Geismar

Age of homes, median year built
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–102001198219771974
2010–142003198419791975
2015–192004198619811977
2020–242005199019841980
Change+4+9+7+6
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Geismar has newer housing than the country as a whole: the median home was built in 2005, versus 1980 nationally. The median year built has moved up from 2001 in 2006–10, a sign of steady new building. Of the 151 Louisiana cities with 5,000+ people, only three have newer homes.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Geismar

Rent, per month
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–10$749$775$755$965
2010–14$1,190$890$831$1,040
2015–19$1,063$1,001$920$1,213
2020–24$987$1,207$1,122$1,571
Change+$238+$432+$366+$606
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Rent in Geismar runs $987 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $238 a month since 2006–10, up 32%, a slower climb than the nation's. Rent takes 16.8% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. The priciest rents are in the west; the most affordable are in the east.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Geismar

Bachelor's degrees in Geismar

Bachelor's degrees, % of adults 25+
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–1033.6%26.3%22.0%28.4%
2010–1430.5%27.9%22.8%29.6%
2015–1928.5%28.6%24.5%32.1%
2020–2444.6%31.5%27.5%35.6%
Change+11.0 pts+5.3 pts+5.5 pts+7.2 pts
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More than four in ten adults 25 and older in Geismar (44.6%) have a bachelor's degree or higher, above the national share of 35.6%. Since 2006–10, the share with a degree has risen 11.0 points, in line with the national trend. Of the 151 Louisiana cities with 5,000+ people, only two have a higher share of college graduates.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Geismar

High school graduates, % of adults 25+
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–1088.9%85.1%81.7%84.9%
2010–1490.8%86.9%83.3%86.1%
2015–1995.0%87.7%85.4%87.7%
2020–2489.5%88.9%87.2%89.3%
Change+0.7 pts+3.8 pts+5.5 pts+4.3 pts
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High school completion in Geismar is close to the national rate: 89.5% of adults have a diploma or equivalent, against 89.3%. The share with a diploma is up 0.7 points from 2006–10, a smaller shift than nationally.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Geismar

Unemployment, % of the labor force
PeriodGeismarBaton Rouge areaLouisianaU.S.
2006–105.0%6.8%7.9%8.1%
2010–145.0%7.7%8.7%9.4%
2015–197.1%6.2%6.7%5.6%
2020–242.3%6.8%6.5%5.4%
Change−2.7 pts+0.0 pts−1.4 pts−2.7 pts
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Unemployment in Geismar has been low: just 2.3% of the labor force was out of work and looking, well below the national rate of 5.4%. Of the 151 Louisiana cities with 5,000+ people, only six have lower unemployment. Unemployment has fallen 2.7 points since 2006–10, in line with the national trend.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Geismar compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Geismar3.1735.84.1%13.0%7.0%2005$98744.6%89.5%2.3%
Gonzales2.6039.515.9%21.8%8.2%2000$1,53223.7%86.5%6.3%
Belle Terre3.1231.822.7%20.9%14.4%2002$1,40723.4%83.0%10.0%
Prairieville2.9136.812.8%15.3%6.1%2002$1,42336.5%92.9%2.8%
Hillaryville3.0533.720.4%16.6%9.9%2005$1,47733.5%87.0%10.8%
St. Gabriel2.5839.627.6%15.7%10.0%2001$1,04430.9%82.9%5.8%
Laurel Ridge2.5330.820.3%47.0%19.7%1983$62716.4%88.4%28.8%
Carville2.1027.845.0%35.1%24.3%2012$96621.1%98.2%21.0%
Darrow2.1354.24.8%2.4%12.1%2006$1,32826.3%76.8%5.8%
Sorrento2.7143.98.3%5.8%7.8%2000$1,37821.9%91.7%1.8%
Port Vincent2.7135.712.5%11.2%10.7%2004$1,25724.6%85.1%2.8%

All figures 2020–24.

Cities with similar populations: Hollymead, VA · West Long Branch, NJ · West Liberty, KY · Hilliard, FL · West Athens, CA · Wernersville, PA · Hohenwald, TN · Wellington, OH · Hollister, MO · Hernando, FL

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Geismar. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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