13634 ZIP Code — Dexter, NY

Jefferson County, New York

ZIP code 13634 is located in Dexter, New York, within Jefferson County. It covers approximately 48.36 square miles and serves a population of 3,947 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 315.

About ZIP code 13634

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $207,100. Owner-occupancy is high at 79%, well above the national average.

Median household income is $85,000. 40% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.

Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.

Overall, ZIP code 13634 reflects a community defined by high homeownership and a significant Social Security-dependent population.

3,947

population

48.36

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

13634 ZIP code map

Cities in ZIP code 13634

Below are the cities the US Postal Service accepts for ZIP code 13634. Using any city not on this list may result in mail delivery delays.

City	Status
Dexter	Acceptable
Dexter	Preferred

Nearby ZIP codes

13622 Chaumont (5.6 mi) 13685 Sackets Harbor (5.7 mi) 13693 Three Mile Bay (8.5 mi) 13601 Watertown (9.2 mi) 13606 Adams Center (11.3 mi) 13618 Cape Vincent (11.7 mi) 13616 Calcium (11.8 mi) 13656 La Fargeville (13.6 mi) 13637 Evans Mills (14 mi) 13624 Clayton (14.1 mi) 13605 Adams (14.6 mi) 13612 Black River (14.9 mi)

Demographics updated 05/2026

Population
Total population	3,947
Population density	82 / sq mi
State FIPS	36
County FIPS	045

Geography
Land area	48.36 sq mi
Water area	1.39 sq mi
Latitude	44.0167
Longitude	-76.0861
Timezone	Eastern (ET)
Area code	315

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.9%	45.1%	37.0%
$50k – $100k	31.2%	34.1%	27.0%
$100k – $200k	30.1%	18.0%	24.4%
Over $200k	2.8%	2.7%	11.5%

Demographics & statistics

3,947

Population

People per sq mi

43.8

Median age

$85,000

Median household income

$35,189

Per capita income

$207,100

Median home value

$744

Median monthly rent

79.2%

Home ownership

10.4%

Poverty rate

8.0%

Unemployment

1,745

Housing units

22.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

143

5–9

138

155

10–14

149

107

15–19

103

20–24

270

25–34

259

193

35–44

185

272

45–54

262

55–59

178

60–64

171

315

65–74

302

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	934	23.7%
18 and over	3,013	76.3%
65 and over	883	22.4%
Median age	43.8 years

Race & ethnicity

White 97.1%

Two or more races 1.1%

Black or African American 0.9%

Hispanic or Latino 0.8%

Other race 0.2%

Group	Count	%
White	3,862	97.1%
Two or more races	45	1.1%
Black or African American	34	0.9%
Hispanic or Latino	31	0.8%
Other race	6	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	35.9%	45.1%	37.0%
$50k – $100k	31.2%	34.1%	27.0%
$100k – $200k	30.1%	18.0%	24.4%
Over $200k	2.8%	2.7%	11.5%

Under $10k 1.6%

$10k–$15k 1.6%

$15k–$25k 4.5%

$25k–$35k 3.0%

$35k–$50k 22.4%

$50k–$75k 15.2%

$75k–$100k 10.3%

$100k–$150k 22.0%

$150k–$200k 14.5%

$200k+ 4.8%

Range	% of households
Under $10k	1.6%
$10k–$15k	1.6%
$15k–$25k	4.5%
$25k–$35k	3.0%
$35k–$50k	22.4%
$50k–$75k	15.2%
$75k–$100k	10.3%
$100k–$150k	22.0%
$150k–$200k	14.5%
$200k+	4.8%
Median income	$85,000

Housing

Home values

Under $50k 4.9%

$50k–$100k 5.5%

$100k–$150k 16.5%

$150k–$200k 20.5%

$200k–$300k 26.0%

$300k–$500k 23.5%

$500k–$1M 3.1%

Housing overview

Metric	Value
Median home value	$207,100
Median rent / month	$744
Owner occupied	79.2%
Renter occupied	20.8%
Vacant	27.2%
Single-family detached	83.9%
Large apartment buildings	0.2%
Mobile homes	10.7%
Median rooms	5.7
Avg household size (owned)	2.65

Year built

Era	%
2020 or later	0.4%
2010–2019	9.7%
2000–2009	12.9%
1990–1999	6.7%
1980–1989	13.9%
1970–1979	16.8%
1960–1969	3.6%
1950–1959	3.3%
1940–1949	3.4%
1939 or earlier	29.4%

Bedrooms

Size	% of units
No bedroom (studio)	1.0%
1 bedroom	3.1%
2 bedrooms	30.8%
3 bedrooms	40.9%
4 bedrooms	14.6%
5+ bedrooms	9.7%

Vehicles per household

Vehicles	% of households
No vehicle	4.9%
1 vehicle	25.0%
2 vehicles	51.5%
3 or more	18.7%

Heating fuel

Fuel type	%
Utility gas	21.0%
Electricity	10.3%
Propane / LP gas	29.2%
Fuel oil	27.2%
Wood	11.1%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	876	58.5%
Cohabiting couple	117	7.8%
Male householder, no spouse	187	12.5%
Female householder, no spouse	318	21.2%
Households with children under 18	541	36.1%
Households with seniors (65+)	566	37.8%
Average household size	2.62

Marital status

Status	Male	Female
Never married	30.6%	23.0%
Married	59.7%	56.8%
Separated	0.4%	6.8%
Widowed	0.7%	6.2%
Divorced	8.7%	7.3%

Education

Less than 9th grade 3.0%

Some HS, no diploma 4.3%

HS graduate 36.4%

Some college, no degree 20.1%

Associate's degree 14.1%

Bachelor's degree 10.8%

Graduate / professional 11.4%

Metric	%
HS diploma or higher	92.7%
Bachelor's or higher	22.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	12	1.4%
Kindergarten	30	3.6%
Elementary school	530	62.8%
High school	218	25.8%
College / grad school	54	6.4%

Employment

Industry of employment

Education & healthcare 21.5%

Public administration 17.5%

Retail trade 16.5%

Arts, food & hospitality 11.7%

Construction 10.7%

Manufacturing 8.2%

Professional & management 4.6%

Finance & real estate 2.4%

Other services 2.3%

Transportation & utilities 1.6%

Information 1.4%

Wholesale trade 1.1%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	32.3%
Service	16.8%
Sales & office	21.3%
Natural resources & construction	9.8%
Production & transportation	19.7%

Employment type

Type	%
Private sector	57.7%
Government	35.4%
Self-employed	5.8%
Unpaid family workers	1.1%

Commute

Method	%
Drive alone	77.9%
Carpool	13.2%
Public transit	0.0%
Walk	0.0%
Work from home	8.4%
Other means	0.5%
Avg commute (minutes)	26.5

Poverty

All people 10.4%

Under 18 years 15.1%

18 and over 8.9%

Married-couple families 2.9%

Female-led households 27.3%

Income support

Source	% of households
Social Security	40.1%
Retirement income	37.8%
Supplemental Security	1.5%
Cash public assistance	0.1%
Food stamps / SNAP	12.9%

Health indicators

Condition	%
Obesity	30.7%
High blood pressure	32.4%
High cholesterol	33.2%
Diabetes	8.9%
Heart disease	5.9%
Stroke	2.7%
Asthma	9.8%
Arthritis	24.6%
Kidney disease	2.7%
Pulmonary disease	6.4%
Cancer	6.8%

Behavior / access	%
Smoking	15.9%
Binge drinking	18.1%
No physical activity	22.7%
Less than 7 hrs sleep	31.8%
Depression	21.9%
Fair or poor health	10.7%
Poor mental health	13.8%
Poor physical health	9.0%
No health insurance	9.3%
Visited doctor (checkup)	79.8%
Visited dentist	67.1%
Cholesterol screening	91.0%
Teeth loss	13.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	238	7.9%

Disability	%
Any disability	20.3%
Under 18	16.1%
18–64 years	18.5%
65 and over	29.2%

Health insurance coverage

Type	%
Private insurance	66.6%
Public insurance	44.2%
No insurance	7.0%
Uninsured under 19	0.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,790	96.0%
Spanish	5	0.1%
Other Indo-European	5	0.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,907	99.0%
Born in same state	3,899	98.8%
Born in different state	3,156	80.0%
Foreign born	8	0.2%
Naturalized citizen	40	1.0%
Not a US citizen	22	55.0%

Ancestry

Ancestry	Count	%
Italian	874	22.1%
French	690	17.5%
Arab	202	5.1%
German	80	2%

Ancestry	Count	%
English	15	0.4%
Irish	13	0.3%
Polish	6	0.2%
Norwegian	1	0%

Technology access

Metric	% of households
Computer access	38.0%
Internet access	93.9%

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

Frequently asked questions about ZIP code 13634

What city is ZIP code 13634 in?

ZIP code 13634 is primarily assigned to Dexter, New York.

What county is ZIP code 13634 in?

ZIP code 13634 falls within Jefferson County, New York.

Does ZIP code 13634 have a large retiree population?

40% of households in ZIP code 13634 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 13634?

ZIP code 13634 has an estimated population of 3,947 residents, with a density of 82 people per square mile.

What is the typical home value in ZIP code 13634?

The median home value in ZIP code 13634 is $207,100.

What is the median household income in ZIP code 13634?

The median household income in ZIP code 13634 is $85,000, above the national median of ~$75,000.

What timezone is ZIP code 13634 in?

ZIP code 13634 observes the EST timezone.