33149 ZIP Code — Key Biscayne, FL

Miami-dade County, Florida

ZIP code 33149 is located in Key Biscayne, Florida, within Miami-dade County. It covers approximately 4.71 square miles and serves a population of 14,639 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 305.

About ZIP code 33149

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1970s, giving the area an established character. Median home value is $1,321,200. Owner-occupancy sits near the national average at 65%.

The gap between median ($169,792) and mean household income suggests income inequality — a small number of higher earners pull the average up.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 24 minutes is near the national average. Remote work is prevalent — 26% of workers work from home.

Educational attainment is high — 73% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 33149 reflects a community defined by a highly educated population and a high rate of remote workers.

14,639

population

4.71

sq mi land

PO Box

ZIP type

Eastern (ET)

timezone

33149 ZIP code map

Cities in ZIP code 33149

Below are the cities the US Postal Service accepts for ZIP code 33149. Using any city not on this list may result in mail delivery delays.

City	Status
Key Biscayne	Acceptable
Key Biscayne	Preferred

Nearby ZIP codes

33109 Miami Beach (3.6 mi) 33109 Miami Beach (3.6 mi) 33129 Miami (3.7 mi) 33131 Miami (4.1 mi) 33130 Miami (4.6 mi) 33133 Miami (4.6 mi) 33195 Miami (4.7 mi) 33188 Miami (4.7 mi) 33112 Miami (4.7 mi) 33139 Miami Beach (4.9 mi) 33132 Miami (4.9 mi) 33128 Miami (5.2 mi)

Demographics updated 05/2026

Population
Total population	14,639
Population density	3,108 / sq mi
State FIPS	12
County FIPS	086

Geography
Land area	4.71 sq mi
Water area	9.38 sq mi
Latitude	25.7114
Longitude	-80.1632
Timezone	Eastern (ET)
Area code	305

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	17.4%	46.6%	43.4%
$50k – $100k	17.0%	28.5%	30.8%
$100k – $200k	22.4%	18.2%	19.3%
Over $200k	43.2%	6.7%	6.4%

Demographics & statistics

14,639

Population

3,108

People per sq mi

42.5

Median age

$169,792

Median household income

$87,017

Per capita income

$1,321,200

Median home value

$3,501

Median monthly rent

65.1%

Home ownership

8.3%

Poverty rate

4.1%

Unemployment

5,788

Housing units

73.1%

Bachelor's or higher

Age distribution

Male Female

323

Under 5

330

465

5–9

475

960

10–14

981

688

15–19

704

294

20–24

300

356

25–34

365

769

35–44

787

1,561

45–54

1,597

399

55–59

408

290

60–64

297

592

65–74

605

443

75–84

452

85+

100

← Male

Female →

Age summary

Group	Count	%
Under 18	4,582	31.3%
18 and over	10,057	68.7%
65 and over	2,290	15.6%
Median age	42.5 years

Race & ethnicity

White 38.1%

Hispanic or Latino 30.1%

Two or more races 29.1%

Other race 2%

Black or African American 0.4%

Asian 0.2%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	7,978	38.1%
Hispanic or Latino	6,304	30.1%
Two or more races	6,099	29.1%
Other race	422	2%
Black or African American	91	0.4%
Asian	35	0.2%
Native Hawaiian / Pacific Islander	14	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	17.4%	46.6%	43.4%
$50k – $100k	17.0%	28.5%	30.8%
$100k – $200k	22.4%	18.2%	19.3%
Over $200k	43.2%	6.7%	6.4%

Under $10k 4.6%

$10k–$15k 2.0%

$15k–$25k 2.7%

$25k–$35k 2.2%

$35k–$50k 5.4%

$50k–$75k 10.3%

$75k–$100k 9.3%

$100k–$150k 11.2%

$150k–$200k 5.1%

$200k+ 47.0%

Range	% of households
Under $10k	4.6%
$10k–$15k	2.0%
$15k–$25k	2.7%
$25k–$35k	2.2%
$35k–$50k	5.4%
$50k–$75k	10.3%
$75k–$100k	9.3%
$100k–$150k	11.2%
$150k–$200k	5.1%
$200k+	47.0%
Median income	$169,792

Housing

Home values

Under $50k 1.2%

$200k–$300k 0.7%

$300k–$500k 6.7%

$500k–$1M 27.8%

$1M+ 63.6%

Housing overview

Metric	Value
Median home value	$1,321,200
Median rent / month	$3,501
Owner occupied	65.1%
Renter occupied	34.9%
Vacant	37.0%
Single-family detached	17.9%
Large apartment buildings	75.6%
Mobile homes	0.5%
Median rooms	4.8
Avg household size (owned)	3.18

Year built

Era	%
2020 or later	0.1%
2010–2019	3.7%
2000–2009	10.3%
1990–1999	14.9%
1980–1989	17.3%
1970–1979	32.4%
1960–1969	13.7%
1950–1959	6.9%
1940–1949	0.5%
1939 or earlier	0.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	8.4%
2 bedrooms	42.8%
3 bedrooms	28.1%
4 bedrooms	11.0%
5+ bedrooms	8.9%

Vehicles per household

Vehicles	% of households
No vehicle	2.9%
1 vehicle	39.8%
2 vehicles	39.2%
3 or more	18.1%

Heating fuel

Fuel type	%
Utility gas	5.4%
Electricity	88.3%
Propane / LP gas	0.7%
Fuel oil	0.5%
No fuel used	5.0%

Households & families

Household type	Count	%
Married-couple family	3,102	66.3%
Cohabiting couple	155	3.3%
Male householder, no spouse	300	6.4%
Female householder, no spouse	1,119	23.9%
Households with children under 18	2,255	48.2%
Households with seniors (65+)	1,522	32.5%
Average household size	3.13

Marital status

Status	Male	Female
Never married	29.4%	28.7%
Married	64.4%	53.1%
Separated	0.2%	0.8%
Widowed	2.0%	5.5%
Divorced	4.0%	11.9%

Education

Less than 9th grade 2.6%

Some HS, no diploma 0.7%

HS graduate 8.7%

Some college, no degree 10.1%

Associate's degree 4.9%

Bachelor's degree 36.1%

Graduate / professional 37.0%

Metric	%
HS diploma or higher	96.8%
Bachelor's or higher	73.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	181	3.6%
Kindergarten	137	2.8%
Elementary school	2,298	46.2%
High school	1,293	26.0%
College / grad school	1,063	21.4%

Employment

Industry of employment

Finance & real estate 27.6%

Professional & management 19.2%

Education & healthcare 14.9%

Arts, food & hospitality 6.6%

Retail trade 6.2%

Other services 5.7%

Wholesale trade 4.7%

Information 4.6%

Manufacturing 3.2%

Transportation & utilities 2.9%

Construction 2.4%

Public administration 1.9%

Occupation

Category	%
Management, business & arts	63.8%
Service	9.4%
Sales & office	22.5%
Natural resources & construction	1.5%
Production & transportation	2.7%

Employment type

Type	%
Private sector	83.9%
Government	5.2%
Self-employed	10.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	59.9%
Carpool	3.6%
Public transit	2.9%
Walk	3.9%
Work from home	25.6%
Other means	4.1%
Avg commute (minutes)	24.0

Poverty

All people 8.3%

Under 18 years 8.4%

18 and over 8.3%

Married-couple families 4.3%

Female-led households 22.4%

Income support

Source	% of households
Social Security	26.1%
Retirement income	13.9%
Supplemental Security	2.9%
Cash public assistance	1.7%
Food stamps / SNAP	1.8%

Health indicators

Condition	%
Obesity	23.4%
High blood pressure	27.2%
High cholesterol	31.0%
Diabetes	9.7%
Heart disease	5.1%
Stroke	2.1%
Asthma	6.5%
Arthritis	18.8%
Kidney disease	2.7%
Pulmonary disease	3.7%
Cancer	6.8%

Behavior / access	%
Smoking	7.3%
Binge drinking	13.6%
No physical activity	20.4%
Less than 7 hrs sleep	29.3%
Depression	13.0%
Fair or poor health	10.3%
Poor mental health	10.7%
Poor physical health	7.7%
No health insurance	17.4%
Visited doctor (checkup)	77.1%
Visited dentist	75.8%
Cholesterol screening	94.9%
Teeth loss	5.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	146	1.5%

Disability	%
Any disability	5.7%
Under 18	1.5%
18–64 years	3.3%
65 and over	22.5%

Health insurance coverage

Type	%
Private insurance	86.8%
Public insurance	17.7%
No insurance	3.3%
Uninsured under 19	1.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,986	95.5%
Spanish	2,276	16.3%
Other Indo-European	2,070	14.8%
Asian & Pacific Islander	206	1.5%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,251	42.7%
Born in same state	5,595	38.2%
Born in different state	3,554	24.3%
Foreign born	656	4.5%
Naturalized citizen	8,388	57.3%
Not a US citizen	3,667	43.7%

Ancestry

Ancestry	Count	%
French	509	3.5%
Italian	407	2.8%
Arab	392	2.7%
English	49	0.3%

Ancestry	Count	%
German	17	0.1%
Irish	14	0.1%
Dutch	10	0.1%
Norwegian	8	0.1%

Technology access

Metric	% of households
Computer access	31.9%
Internet access	98.4%

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

Frequently asked questions about ZIP code 33149

What city is ZIP code 33149 in?

ZIP code 33149 is primarily assigned to Key Biscayne, Florida.

What county is ZIP code 33149 in?

ZIP code 33149 falls within Miami-Dade County, Florida.

How educated is the population of ZIP code 33149?

73% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 33149 family-oriented?

31% of residents in ZIP code 33149 are under 18, reflecting a younger, family-oriented community.

What is the median household income in ZIP code 33149?

The median household income in ZIP code 33149 is $169,792, above the national median of ~$75,000.

What is the typical home value in ZIP code 33149?

The median home value in ZIP code 33149 is $1,321,200.

What timezone is ZIP code 33149 in?

ZIP code 33149 observes the EST timezone.