What are the schools like in Grand Isle, LA?

Grand Isle is served primarily by Jefferson Parish. The district operates 50 elementary schools, 7 middle schools, and 16 high schools with a student-to-teacher ratio of 14.4:1.

What is the median household income in Grand Isle?

The median household income in Grand Isle, LA is N/A according to the most recent US Census American Community Survey 5-year estimates. The unemployment rate is 6.3%.

What is the weather like in Grand Isle, LA?

Grand Isle has an average high temperature of 62.9°F in January and 89.3°F in July. Annual precipitation averages 62.4 inches.

Grand Isle, LA Cost of Living, Crime & Is It a Good Place to Live? (2026)

Q: Is Grand Isle, LA affordable or expensive?

Grand Isle's cost of living index is 91, where 100 represents the national average. This means Grand Isle is 9% less expensive than the average US city. The median home value is $257,900 and the median rent is $1,028 per month.

Q: What is the crime rate in Grand Isle, LA?

Grand Isle has a violent crime rate of 390.1 incidents per 100,000 residents and a property crime rate of 2629.4 per 100,000. The national average violent crime rate is approximately 380 per 100,000.

Is Grand Isle, LA a Good Place to Live?

Grand Isle is a small town of 903 in Louisiana, with a median household income of N/A and a 6.3% unemployment rate. Its cost of living index is 91 (US average = 100), which is 9% below the national average.

Strengths: Grand Isle stands out for an affordable cost of living.

Trade-offs: Potential downsides include longer commutes, an elevated unemployment rate. Whether Grand Isle is right for you depends on your priorities — the full breakdown is below.

All Grand Isle city data on this page comes from official government sources — the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.

Cost of Living

Index: 91.1

Grand Isle's overall cost of living index is 91.1, where 100 represents the US national average. Living in Grand Isle costs roughly 9% less than the average American city.

Metric	Grand Isle, LA	National Avg
Median Home Value	$257,900	$244,900
Median Monthly Rent	$1,028	$1,163
Homeownership Rate	72.4%	65.9%
Median Household Income	N/A	$74,755

Crime & Safety

Near National Average

Grand Isle's violent crime rate is 390.1 per 100,000 residents — 3% higher than the national average of ~380 per 100,000.

Violent Crime

390.1 /100k

Property Crime

2629.4 /100k

Vertical marker = national average. Source: FBI UCR Program.

Schools & Education

Grand Isle is served primarily by Jefferson Parish. The student-to-teacher ratio is 14.4:1 (better than the national average of ~16:1).

Metric	Grand Isle, LA	National Avg
School District	Jefferson Parish	—
Elementary Schools	50	—
Middle Schools	7	—
High Schools	16	—
Student/Teacher Ratio	14.4:1	16:1
Bachelor's Degree or Higher	18.6%	35.4%
High School Diploma or Higher	82.8%	91.1%

Weather & Climate

Grand Isle sees average highs of 62.9°F in January and 89.3°F in July, with 62.4 inches of annual precipitation .

Metric	Grand Isle, LA
Average High — January	62.9°F
Average High — July	89.3°F
Annual Precipitation	62.4"
Annual Snowfall	Trace / None

Demographics

Metric	Grand Isle, LA	National Avg
Population	903	—
Median Age	51.0	38.9
Unemployment Rate	6.3%	3.7%
Avg Commute Time	31.7 min	26 min
White (non-Hispanic)	95.2%	59.3%
Black or African American	0.7%	13.6%
Hispanic or Latino	2.1%	18.9%
Asian	0.0%	6.3%
Under 18	18.6%	22.2%
65 and over	18.4%	16.8%

Nearby Cities

Golden Meadow, LA 19 mi Galliano, LA 23 mi Port Sulphur, LA 27 mi Cut Off, LA 28 mi Pointe a la Hache, LA 29 mi

ZIP Codes in Grand Isle

Grand Isle, LA is covered by 1 ZIP code:

70358

Grand Isle vs Other Cities

Grand Isle, LA vs Golden Meadow, LA Grand Isle, LA vs Galliano, LA Grand Isle, LA vs Port Sulphur, LA Grand Isle, LA vs Cut Off, LA Grand Isle, LA vs Pointe a la Hache, LA

Frequently Asked Questions

Is Grand Isle, LA affordable or expensive?

Grand Isle's cost of living index is 91, where 100 is the national average. That makes Grand Isle roughly 9% less expensive than a typical US city — a meaningful affordability advantage. The median home price is $257,900 and median rent is $1,028/month.

What is the crime rate in Grand Isle, LA?

Grand Isle's violent crime rate is 390.1 per 100,000 residents — the national average is ~380 per 100,000. Property crime is 2629.4 per 100,000 (national avg ~2,100). Data from the FBI Uniform Crime Reporting Program.

What are the schools like in Grand Isle?

Public schools in Grand Isle are operated by Jefferson Parish. The district has 50 elementary, 7 middle, and 16 high schools. The student-to-teacher ratio is 14.4:1. 18.6% of adults 25+ hold a bachelor's degree or higher.

Is Grand Isle, LA a good place to live?

Grand Isle, LA has a population of 903, a median household income of N/A, and an unemployment rate of 6.3%. It offers below-average costs of living, which stretches take-home pay further than in most American cities. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.

What is the weather like in Grand Isle?

Grand Isle averages 62.9°F in January and 89.3°F in July. Annual rainfall is 62.4 inches . Based on NOAA 30-year climate normals (1991–2020).

What ZIP codes are in Grand Isle?

Grand Isle, LA is covered by 1 ZIP code: 70358.

What is the population of Grand Isle?

The population of Grand Isle, Louisiana is 903 with a median age of 51.0. Source: US Census ACS 5-Year Estimates.

What are the pros and cons of living in Grand Isle?

Key numbers for living in Grand Isle: cost of living index 91 (100 = US average), median home $257,900, median household income N/A, crime index 112 (100 = US average, lower is safer), schools rated C+. Whether these are benefits or drawbacks depends on where you're coming from — compare Grand Isle side by side with your current city to see the trade-offs.