33957 ZIP Code — Sanibel, FL

Lee County, Florida

ZIP code 33957 is located in Sanibel, Florida, within Lee County. It covers approximately 16.23 square miles and serves a population of 6,420 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 239.

About ZIP code 33957

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $844,500. Owner-occupancy is high at 90%, well above the national average.

The gap between median ($111,683) and mean household income suggests income inequality — a small number of higher earners pull the average up. 68% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with retail trade as the leading industry. The average commute of 18 minutes is near the national average. Remote work is prevalent — 32% of workers work from home.

Educational attainment is high — 59% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 33957 reflects a community defined by a highly educated population, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

6,420

population

16.23

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

33957 ZIP code map

Cities in ZIP code 33957

Below are the cities the US Postal Service accepts for ZIP code 33957. Using any city not on this list may result in mail delivery delays.

City	Status
Sanibel	Preferred

Nearby ZIP codes

33956 Saint James City (5.7 mi) 33931 Fort Myers Beach (11.1 mi) 33931 Fort Myers Beach (11.1 mi) 33908 Fort Myers (11.2 mi) 33922 Bokeelia (12.6 mi) 33919 Fort Myers (13.8 mi) 33993 Cape Coral (14.6 mi) 33907 Fort Myers (15.5 mi) 33912 Fort Myers (17.6 mi) 33901 Fort Myers (17.6 mi) 33967 Fort Myers (17.9 mi) 33967 Fort Myers (17.9 mi)

Demographics updated 07/2026

Population
Total population	6,420
Population density	396 / sq mi
State FIPS	12
County FIPS	071

Geography
Land area	16.23 sq mi
Water area	18.95 sq mi
Latitude	26.4701
Longitude	-82.1031
Timezone	Eastern (ET)
Area code	239

Total population by age

Gender

Race & ethnicity

Economics updated 07/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.9%	41.5%	43.4%
$50k – $100k	19.4%	33.0%	30.8%
$100k – $200k	25.7%	19.1%	19.3%
Over $200k	22.0%	6.4%	6.4%

Demographics & statistics

6,420

Population

396

People per sq mi

68.6

Median age

$111,683

Median household income

$114,484

Per capita income

$844,500

Median home value

$1,003

Median monthly rent

89.7%

Home ownership

9.5%

Poverty rate

4.6%

Unemployment

8,117

Housing units

59.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

109

139

45–54

153

298

55–59

327

363

60–64

398

1,132

65–74

1,243

698

75–84

766

117

85+

128

← Male

Female →

Age summary

Group	Count	%
Under 18	151	2.4%
18 and over	6,269	97.6%
65 and over	4,084	63.6%
Median age	68.6 years

Race & ethnicity

White 95.8%

Asian 1%

Two or more races 0.9%

Black or African American 0.7%

Hispanic or Latino 0.6%

American Indian / Alaska Native 0.6%

Other race 0.4%

Group	Count	%
White	6,190	95.8%
Asian	65	1%
Two or more races	61	0.9%
Black or African American	45	0.7%
Hispanic or Latino	41	0.6%
American Indian / Alaska Native	36	0.6%
Other race	23	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.9%	41.5%	43.4%
$50k – $100k	19.4%	33.0%	30.8%
$100k – $200k	25.7%	19.1%	19.3%
Over $200k	22.0%	6.4%	6.4%

Under $10k 5.2%

$10k–$15k 3.5%

$15k–$25k 6.2%

$25k–$35k 2.5%

$35k–$50k 12.6%

$50k–$75k 6.6%

$75k–$100k 9.1%

$100k–$150k 13.9%

$150k–$200k 11.3%

$200k+ 29.2%

Range	% of households
Under $10k	5.2%
$10k–$15k	3.5%
$15k–$25k	6.2%
$25k–$35k	2.5%
$35k–$50k	12.6%
$50k–$75k	6.6%
$75k–$100k	9.1%
$100k–$150k	13.9%
$150k–$200k	11.3%
$200k+	29.2%
Median income	$111,683

Housing

Home values

Under $50k 4.6%

$50k–$100k 1.1%

$100k–$150k 0.6%

$150k–$200k 1.5%

$200k–$300k 1.2%

$300k–$500k 13.1%

$500k–$1M 38.8%

$1M+ 39.0%

Housing overview

Metric	Value
Median home value	$844,500
Median rent / month	$1,003
Owner occupied	89.7%
Renter occupied	10.3%
Vacant	58.8%
Single-family detached	51.3%
Large apartment buildings	19.9%
Mobile homes	3.0%
Median rooms	5.2
Avg household size (owned)	1.88

Year built

Era	%
2020 or later	0.1%
2010–2019	3.0%
2000–2009	8.1%
1990–1999	11.1%
1980–1989	39.5%
1970–1979	33.5%
1960–1969	2.3%
1950–1959	1.4%
1940–1949	0.3%
1939 or earlier	0.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.5%
1 bedroom	5.8%
2 bedrooms	41.1%
3 bedrooms	37.6%
4 bedrooms	10.3%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.0%
1 vehicle	43.2%
2 vehicles	47.3%
3 or more	8.5%

Heating fuel

Fuel type	%
Utility gas	2.5%
Electricity	93.6%
Propane / LP gas	2.1%
No fuel used	1.7%

Households & families

Household type	Count	%
Married-couple family	2,208	63.2%
Cohabiting couple	63	1.8%
Male householder, no spouse	433	12.4%
Female householder, no spouse	787	22.5%
Households with children under 18	122	3.5%
Households with seniors (65+)	2,549	73.0%
Average household size	1.83

Marital status

Status	Male	Female
Never married	6.4%	8.2%
Married	78.8%	70.6%
Separated	1.3%	0.3%
Widowed	6.1%	13.6%
Divorced	7.5%	7.2%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.6%

HS graduate 21.5%

Some college, no degree 13.0%

Associate's degree 5.7%

Bachelor's degree 31.1%

Graduate / professional 28.1%

Metric	%
HS diploma or higher	99.4%
Bachelor's or higher	59.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	22	7.5%
Kindergarten	0	0.0%
Elementary school	81	27.6%
High school	31	10.6%
College / grad school	159	54.3%

Employment

Industry of employment

Retail trade 18.2%

Professional & management 18.0%

Finance & real estate 17.1%

Education & healthcare 10.5%

Construction 7.2%

Arts, food & hospitality 6.6%

Other services 6.4%

Manufacturing 4.3%

Information 3.9%

Wholesale trade 3.2%

Agriculture & mining 1.7%

Public administration 1.4%

Transportation & utilities 1.3%

Occupation

Category	%
Management, business & arts	53.4%
Service	7.4%
Sales & office	25.9%
Natural resources & construction	9.5%
Production & transportation	3.8%

Employment type

Type	%
Private sector	84.0%
Government	4.1%
Self-employed	11.5%
Unpaid family workers	0.4%

Commute

Method	%
Drive alone	50.6%
Carpool	6.4%
Public transit	0.2%
Walk	10.2%
Work from home	31.9%
Other means	0.8%
Avg commute (minutes)	17.8

Poverty

All people 9.5%

Under 18 years 29.8%

18 and over 9.0%

Married-couple families 4.9%

Female-led households 40.5%

Income support

Source	% of households
Social Security	68.4%
Retirement income	40.4%
Supplemental Security	2.5%
Cash public assistance	0.0%
Food stamps / SNAP	1.4%

Health indicators

Condition	%
Obesity	22.3%
High blood pressure	41.7%
High cholesterol	41.7%
Diabetes	12.2%
Heart disease	10.1%
Stroke	3.9%
Asthma	7.1%
Arthritis	34.3%
Kidney disease	4.0%
Pulmonary disease	8.0%
Cancer	13.3%

Behavior / access	%
Smoking	9.1%
Binge drinking	10.6%
No physical activity	18.0%
Less than 7 hrs sleep	23.8%
Depression	14.7%
Fair or poor health	12.1%
Poor mental health	9.3%
Poor physical health	10.0%
No health insurance	10.0%
Visited doctor (checkup)	83.0%
Visited dentist	78.5%
Cholesterol screening	97.3%
Teeth loss	6.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	483	7.7%

Disability	%
Any disability	11.2%
Under 18	13.2%
18–64 years	2.2%
65 and over	15.9%

Health insurance coverage

Type	%
Private insurance	67.4%
Public insurance	64.7%
No insurance	1.7%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,398	99.7%
Spanish	67	1.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	44	0.7%
Other languages	23	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,087	94.8%
Born in same state	6,021	93.8%
Born in different state	305	4.8%
Foreign born	66	1.0%
Naturalized citizen	333	5.2%
Not a US citizen	239	71.8%

Ancestry

Ancestry	Count	%
Italian	1,152	17.9%
French	1,065	16.6%
Arab	1,009	15.7%
Polish	217	3.4%
English	128	2%

Ancestry	Count	%
Irish	84	1.3%
German	48	0.7%
Dutch	36	0.6%
Norwegian	21	0.3%

Technology access

Metric	% of households
Computer access	54.4%
Internet access	94.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 33957

What city is ZIP code 33957 in?

ZIP code 33957 is primarily assigned to Sanibel, Florida.

What county is ZIP code 33957 in?

ZIP code 33957 falls within Lee County, Florida.

Does ZIP code 33957 have an older population?

64% of residents in ZIP code 33957 are 65 or older, above the national average of ~17%.

Does ZIP code 33957 have a large retiree population?

68% of households in ZIP code 33957 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 33957?

59% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 33957 mostly owner-occupied?

90% of occupied units in ZIP code 33957 are owner-occupied, well above the national average.

What timezone is ZIP code 33957 in?

ZIP code 33957 observes the EST timezone.