13340 ZIP Code — Frankfort, NY

Herkimer County, New York

ZIP code 13340 is located in Frankfort, New York, within Herkimer County. It covers approximately 60.35 square miles and serves a population of 7,479 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 315.

About ZIP code 13340

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 $138,500. Owner-occupancy is high at 83%, well above the national average.

Median household income is $66,775. 39% 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 25 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 13340 reflects a community defined by high homeownership and a significant Social Security-dependent population.

7,479

population

60.35

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

13340 ZIP code map

Cities in ZIP code 13340

Below are the cities the US Postal Service accepts for ZIP code 13340. Using any city not on this list may result in mail delivery delays.

City	Status
Frankfort	Acceptable
Frankfort	Preferred

Nearby ZIP codes

13357 Ilion (4.7 mi) 13501 Utica (6.5 mi) 13322 Clayville (6.8 mi) 13456 Sauquoit (7.4 mi) 13599 Utica (7.4 mi) 13319 Chadwicks (7.6 mi) 13413 New Hartford (7.9 mi) 13350 Herkimer (8.1 mi) 13502 Utica (8.2 mi) 13495 Yorkville (9.9 mi) 13417 New York Mills (10 mi) 13407 Mohawk (10.2 mi)

Demographics updated 06/2026

Population
Total population	7,479
Population density	124 / sq mi
State FIPS	36
County FIPS	043

Geography
Land area	60.35 sq mi
Water area	0.31 sq mi
Latitude	43.0376
Longitude	-75.1148
Timezone	Eastern (ET)
Area code	315

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.0%	44.6%	37.0%
$50k – $100k	30.7%	32.9%	27.0%
$100k – $200k	25.2%	20.1%	24.4%
Over $200k	2.1%	2.5%	11.5%

Demographics & statistics

7,479

Population

124

People per sq mi

42.7

Median age

$66,775

Median household income

$37,685

Per capita income

$138,500

Median home value

$852

Median monthly rent

83.0%

Home ownership

9.6%

Poverty rate

2.6%

Unemployment

2,899

Housing units

21.5%

Bachelor's or higher

Age distribution

Male Female

198

Under 5

190

243

5–9

234

272

10–14

262

205

15–19

198

243

20–24

234

468

25–34

450

396

35–44

381

500

45–54

482

244

55–59

236

303

60–64

292

441

65–74

424

211

75–84

203

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,667	22.3%
18 and over	5,812	77.7%
65 and over	1,448	19.4%
Median age	42.7 years

Race & ethnicity

White 89.6%

Two or more races 3.6%

Hispanic or Latino 3.4%

Black or African American 2%

Other race 1%

Asian 0.4%

Group	Count	%
White	6,936	89.6%
Two or more races	280	3.6%
Hispanic or Latino	266	3.4%
Black or African American	157	2%
Other race	76	1%
Asian	30	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.0%	44.6%	37.0%
$50k – $100k	30.7%	32.9%	27.0%
$100k – $200k	25.2%	20.1%	24.4%
Over $200k	2.1%	2.5%	11.5%

Under $10k 3.3%

$10k–$15k 0.9%

$15k–$25k 9.4%

$25k–$35k 7.0%

$35k–$50k 17.4%

$50k–$75k 19.5%

$75k–$100k 7.9%

$100k–$150k 18.5%

$150k–$200k 12.3%

$200k+ 3.9%

Range	% of households
Under $10k	3.3%
$10k–$15k	0.9%
$15k–$25k	9.4%
$25k–$35k	7.0%
$35k–$50k	17.4%
$50k–$75k	19.5%
$75k–$100k	7.9%
$100k–$150k	18.5%
$150k–$200k	12.3%
$200k+	3.9%
Median income	$66,775

Housing

Home values

Under $50k 10.2%

$50k–$100k 15.9%

$100k–$150k 30.7%

$150k–$200k 17.0%

$200k–$300k 16.4%

$300k–$500k 7.5%

$500k–$1M 2.4%

Housing overview

Metric	Value
Median home value	$138,500
Median rent / month	$852
Owner occupied	83.0%
Renter occupied	17.0%
Vacant	8.0%
Single-family detached	77.5%
Large apartment buildings	0.3%
Mobile homes	8.4%
Median rooms	6.1
Avg household size (owned)	2.38

Year built

Era	%
2020 or later	0.0%
2010–2019	2.4%
2000–2009	10.0%
1990–1999	9.7%
1980–1989	8.1%
1970–1979	7.3%
1960–1969	14.1%
1950–1959	7.1%
1940–1949	9.1%
1939 or earlier	32.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.3%
1 bedroom	4.9%
2 bedrooms	21.6%
3 bedrooms	55.2%
4 bedrooms	15.7%
5+ bedrooms	2.2%

Vehicles per household

Vehicles	% of households
No vehicle	5.4%
1 vehicle	40.4%
2 vehicles	41.9%
3 or more	12.3%

Heating fuel

Fuel type	%
Utility gas	56.4%
Electricity	11.5%
Propane / LP gas	3.7%
Fuel oil	17.9%
Wood	6.8%
Solar	1.0%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	1,529	48.4%
Cohabiting couple	270	8.5%
Male householder, no spouse	528	16.7%
Female householder, no spouse	832	26.3%
Households with children under 18	959	30.4%
Households with seniors (65+)	1,057	33.5%
Average household size	2.36

Marital status

Status	Male	Female
Never married	29.5%	25.1%
Married	55.6%	52.4%
Separated	0.2%	4.2%
Widowed	3.8%	11.2%
Divorced	10.9%	7.1%

Education

Less than 9th grade 4.2%

Some HS, no diploma 4.3%

HS graduate 36.0%

Some college, no degree 16.2%

Associate's degree 17.8%

Bachelor's degree 12.7%

Graduate / professional 8.8%

Metric	%
HS diploma or higher	91.5%
Bachelor's or higher	21.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	106	7.7%
Kindergarten	127	9.2%
Elementary school	750	54.6%
High school	210	15.3%
College / grad school	181	13.2%

Employment

Industry of employment

Education & healthcare 32.6%

Professional & management 10.2%

Retail trade 9.3%

Public administration 8.1%

Manufacturing 7.7%

Construction 6.8%

Finance & real estate 6.6%

Arts, food & hospitality 5.7%

Other services 4.3%

Wholesale trade 3.4%

Transportation & utilities 3.4%

Information 1.1%

Agriculture & mining 0.7%

Occupation

Category	%
Management, business & arts	36.8%
Service	21.2%
Sales & office	20.6%
Natural resources & construction	8.7%
Production & transportation	12.7%

Employment type

Type	%
Private sector	77.4%
Government	19.9%
Self-employed	2.4%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	83.8%
Carpool	7.2%
Public transit	0.1%
Walk	2.0%
Work from home	6.4%
Other means	0.5%
Avg commute (minutes)	24.9

Poverty

All people 9.6%

Under 18 years 18.7%

18 and over 7.1%

Married-couple families 4.4%

Female-led households 13.3%

Income support

Source	% of households
Social Security	38.9%
Retirement income	29.3%
Supplemental Security	6.2%
Cash public assistance	2.7%
Food stamps / SNAP	11.5%

Health indicators

Condition	%
Obesity	29.4%
High blood pressure	34.2%
High cholesterol	32.9%
Diabetes	9.2%
Heart disease	6.6%
Stroke	3.0%
Asthma	10.1%
Arthritis	24.5%
Kidney disease	2.9%
Pulmonary disease	7.1%
Cancer	7.3%

Behavior / access	%
Smoking	17.8%
Binge drinking	18.3%
No physical activity	24.1%
Less than 7 hrs sleep	34.5%
Depression	21.4%
Fair or poor health	12.2%
Poor mental health	14.3%
Poor physical health	9.8%
No health insurance	10.0%
Visited doctor (checkup)	78.6%
Visited dentist	67.7%
Cholesterol screening	91.0%
Teeth loss	13.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	387	6.7%

Disability	%
Any disability	13.2%
Under 18	7.6%
18–64 years	10.7%
65 and over	27.4%

Health insurance coverage

Type	%
Private insurance	69.8%
Public insurance	43.8%
No insurance	3.1%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,091	94.8%
Spanish	183	2.6%
Other Indo-European	37	0.5%
Asian & Pacific Islander	145	2.0%
Other languages	1	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,987	93.4%
Born in same state	6,950	92.9%
Born in different state	6,535	87.4%
Foreign born	37	0.5%
Naturalized citizen	492	6.6%
Not a US citizen	435	88.4%

Ancestry

Ancestry	Count	%
Italian	1,445	19.3%
Arab	474	6.3%
French	422	5.6%
Irish	88	1.2%

Ancestry	Count	%
German	68	0.9%
Polish	5	0.1%
English	4	0.1%

Technology access

Metric	% of households
Computer access	42.2%
Internet access	91.4%

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

Frequently asked questions about ZIP code 13340

What city is ZIP code 13340 in?

ZIP code 13340 is primarily assigned to Frankfort, New York.

What county is ZIP code 13340 in?

ZIP code 13340 falls within Herkimer County, New York.

Is ZIP code 13340 mostly owner-occupied?

83% of occupied units in ZIP code 13340 are owner-occupied, well above the national average.

Does ZIP code 13340 have a large retiree population?

39% of households in ZIP code 13340 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 13340?

The median home value in ZIP code 13340 is $138,500.

What is the population of ZIP code 13340?

ZIP code 13340 has an estimated population of 7,479 residents, with a density of 124 people per square mile.

What timezone is ZIP code 13340 in?

ZIP code 13340 observes the EST timezone.