13620 ZIP Code — Castorland, NY

Lewis County, New York

ZIP code 13620 is located in Castorland, New York, within Lewis County. It covers approximately 37.22 square miles and serves a population of 2,066 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 315.

About ZIP code 13620

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 $164,200. Owner-occupancy is high at 80%, well above the national average.

Median household income is $56,462. 38% 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 26 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 13620 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,066

population

37.22

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

13620 ZIP code map

Cities in ZIP code 13620

Below are the cities the US Postal Service accepts for ZIP code 13620. Using any city not on this list may result in mail delivery delays.

City	Status
Castorland	Preferred

Nearby ZIP codes

13619 Carthage (7.5 mi) 13367 Lowville (7.9 mi) 13327 Croghan (10 mi) 13626 Copenhagen (12.5 mi) 13665 Natural Bridge (14.4 mi) 13343 Glenfield (14.6 mi) 13638 Felts Mills (16.7 mi) 13473 Turin (16.8 mi) 13612 Black River (17.3 mi) 13603 Watertown (18.3 mi) 13368 Lyons Falls (18.5 mi) 13602 Fort Drum (19 mi)

Demographics updated 05/2026

Population
Total population	2,066
Population density	56 / sq mi
State FIPS	36
County FIPS	049

Geography
Land area	37.22 sq mi
Water area	0.19 sq mi
Latitude	43.8925
Longitude	-75.4667
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	49.4%	44.6%	37.0%
$50k – $100k	36.7%	34.3%	27.0%
$100k – $200k	10.2%	19.0%	24.4%
Over $200k	3.7%	2.1%	11.5%

Demographics & statistics

2,066

Population

People per sq mi

34.4

Median age

$56,462

Median household income

$25,090

Per capita income

$164,200

Median home value

$950

Median monthly rent

80.2%

Home ownership

15.9%

Poverty rate

6.5%

Unemployment

734

Housing units

22.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

115

5–9

110

10–14

133

15–19

20–24

137

25–34

166

116

35–44

140

45–54

55–59

60–64

109

65–74

132

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	648	31.4%
18 and over	1,418	68.6%
65 and over	409	19.8%
Median age	34.4 years

Race & ethnicity

White 96.9%

Two or more races 1.2%

Black or African American 0.7%

Hispanic or Latino 0.7%

Asian 0.6%

Group	Count	%
White	2,016	96.9%
Two or more races	24	1.2%
Black or African American	14	0.7%
Hispanic or Latino	14	0.7%
Asian	12	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	49.4%	44.6%	37.0%
$50k – $100k	36.7%	34.3%	27.0%
$100k – $200k	10.2%	19.0%	24.4%
Over $200k	3.7%	2.1%	11.5%

Under $10k 8.1%

$10k–$15k 7.2%

$15k–$25k 10.1%

$25k–$35k 3.6%

$35k–$50k 12.3%

$50k–$75k 24.9%

$75k–$100k 17.0%

$100k–$150k 11.0%

$150k–$200k 4.7%

$200k+ 1.0%

Range	% of households
Under $10k	8.1%
$10k–$15k	7.2%
$15k–$25k	10.1%
$25k–$35k	3.6%
$35k–$50k	12.3%
$50k–$75k	24.9%
$75k–$100k	17.0%
$100k–$150k	11.0%
$150k–$200k	4.7%
$200k+	1.0%
Median income	$56,462

Housing

Home values

Under $50k 7.2%

$50k–$100k 16.0%

$100k–$150k 13.8%

$150k–$200k 40.7%

$200k–$300k 21.8%

$500k–$1M 0.5%

Housing overview

Metric	Value
Median home value	$164,200
Median rent / month	$950
Owner occupied	80.2%
Renter occupied	19.8%
Vacant	10.2%
Single-family detached	76.0%
Large apartment buildings	2.8%
Mobile homes	12.3%
Median rooms	5.8
Avg household size (owned)	2.64

Year built

Era	%
2020 or later	0.0%
2010–2019	7.3%
2000–2009	6.3%
1990–1999	11.6%
1980–1989	12.0%
1970–1979	19.1%
1960–1969	4.8%
1950–1959	9.9%
1940–1949	5.4%
1939 or earlier	23.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	7.5%
2 bedrooms	19.3%
3 bedrooms	53.2%
4 bedrooms	16.5%
5+ bedrooms	3.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.5%
1 vehicle	36.7%
2 vehicles	46.1%
3 or more	13.7%

Heating fuel

Fuel type	%
Utility gas	6.6%
Electricity	13.0%
Propane / LP gas	24.4%
Fuel oil	25.2%
Wood	20.8%
Solar	0.5%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	415	51.7%
Cohabiting couple	45	5.6%
Male householder, no spouse	126	15.7%
Female householder, no spouse	216	26.9%
Households with children under 18	317	39.5%
Households with seniors (65+)	283	35.3%
Average household size	2.55

Marital status

Status	Male	Female
Never married	27.2%	24.0%
Married	59.6%	55.4%
Separated	0.0%	0.0%
Widowed	1.7%	7.9%
Divorced	11.5%	12.8%

Education

Less than 9th grade 5.2%

Some HS, no diploma 8.4%

HS graduate 36.1%

Some college, no degree 14.6%

Associate's degree 13.2%

Bachelor's degree 11.1%

Graduate / professional 11.4%

Metric	%
HS diploma or higher	86.4%
Bachelor's or higher	22.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	12	3.0%
Kindergarten	7	1.7%
Elementary school	238	59.2%
High school	115	28.6%
College / grad school	30	7.5%

Employment

Industry of employment

Education & healthcare 18.0%

Construction 15.2%

Public administration 12.3%

Professional & management 10.6%

Finance & real estate 9.3%

Retail trade 8.0%

Manufacturing 6.9%

Transportation & utilities 6.4%

Agriculture & mining 4.6%

Wholesale trade 3.2%

Arts, food & hospitality 2.9%

Information 2.1%

Other services 0.7%

Occupation

Category	%
Management, business & arts	31.8%
Service	13.5%
Sales & office	27.6%
Natural resources & construction	19.8%
Production & transportation	7.3%

Employment type

Type	%
Private sector	52.3%
Government	23.2%
Self-employed	24.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	72.4%
Carpool	9.6%
Public transit	1.1%
Walk	3.3%
Work from home	10.8%
Other means	2.8%
Avg commute (minutes)	25.9

Poverty

All people 15.9%

Under 18 years 10.5%

18 and over 18.4%

Married-couple families 7.7%

Female-led households 53.2%

Income support

Source	% of households
Social Security	38.4%
Retirement income	27.8%
Supplemental Security	3.6%
Cash public assistance	2.9%
Food stamps / SNAP	14.6%

Health indicators

Condition	%
Obesity	31.8%
High blood pressure	32.0%
High cholesterol	31.7%
Diabetes	9.6%
Heart disease	6.8%
Stroke	3.2%
Asthma	10.4%
Arthritis	25.1%
Kidney disease	3.0%
Pulmonary disease	7.9%
Cancer	6.8%

Behavior / access	%
Smoking	19.9%
Binge drinking	18.2%
No physical activity	26.1%
Less than 7 hrs sleep	34.4%
Depression	22.1%
Fair or poor health	13.9%
Poor mental health	15.3%
Poor physical health	10.6%
No health insurance	11.5%
Visited doctor (checkup)	77.0%
Visited dentist	60.8%
Cholesterol screening	89.8%
Teeth loss	15.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	77	5.4%

Disability	%
Any disability	11.3%
Under 18	0.3%
18–64 years	7.0%
65 and over	39.4%

Health insurance coverage

Type	%
Private insurance	65.7%
Public insurance	47.1%
No insurance	4.9%
Uninsured under 19	4.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,857	89.9%
Spanish	6	0.3%
Other Indo-European	6	0.3%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,056	99.5%
Born in same state	2,049	99.2%
Born in different state	1,889	91.4%
Foreign born	7	0.3%
Naturalized citizen	10	0.5%
Not a US citizen	5	50.0%

Ancestry

Ancestry	Count	%
French	173	8.4%
Arab	173	8.4%
Italian	104	5%
German	34	1.6%

Ancestry	Count	%
Irish	20	1%
Polish	16	0.8%
English	6	0.3%

Technology access

Metric	% of households
Computer access	38.8%
Internet access	86.8%

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

Frequently asked questions about ZIP code 13620

What city is ZIP code 13620 in?

ZIP code 13620 is primarily assigned to Castorland, New York.

What county is ZIP code 13620 in?

ZIP code 13620 falls within Lewis County, New York.

Is ZIP code 13620 family-oriented?

31% of residents in ZIP code 13620 are under 18, reflecting a younger, family-oriented community.

What is the poverty rate in ZIP code 13620?

16% of residents in ZIP code 13620 live below the poverty line, above the national average.

Is ZIP code 13620 mostly owner-occupied?

80% of occupied units in ZIP code 13620 are owner-occupied, well above the national average.

Does ZIP code 13620 have a large retiree population?

38% of households in ZIP code 13620 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 13620 in?

ZIP code 13620 observes the EST timezone.