18331 ZIP Code — Gilbert, PA

Monroe County, Pennsylvania

ZIP code 18331 is located in Gilbert, Pennsylvania, within Monroe County. It covers approximately 2.63 square miles and serves a population of 636 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 610.

About ZIP code 18331

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $288,000. Owner-occupancy is high at 83%, well above the national average.

The dominant occupation class is sales and office, with education and healthcare as the leading industry. An above-average commute of 41 minutes suggests many residents work outside the immediate area.

College attainment at 8% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.

Overall, ZIP code 18331 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.

636

population

2.63

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

18331 ZIP code map

Cities in ZIP code 18331

Below are the cities the US Postal Service accepts for ZIP code 18331. Using any city not on this list may result in mail delivery delays.

City	Status
Gilbert	Preferred

Nearby ZIP codes

18058 Kunkletown (2 mi) 18322 Brodheadsville (2.6 mi) 18333 Kresgeville (3.8 mi) 18353 Saylorsburg (4.1 mi) 18330 Effort (4.4 mi) 18354 Sciota (6.1 mi) 18038 Danielsville (7.3 mi) 18091 Wind Gap (7.6 mi) 18210 Albrightsville (8.3 mi) 18360 Stroudsburg (8.3 mi) 18071 Palmerton (8.9 mi) 18014 Bath (9.6 mi)

Demographics updated 05/2026

Population
Total population	636
Population density	242 / sq mi
State FIPS	42
County FIPS	089

Geography
Land area	2.63 sq mi
Water area	0.00 sq mi
Latitude	40.8978
Longitude	-75.4367
Timezone	Eastern (ET)
Area code	610

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	24.9%	35.7%	39.8%
$50k – $100k	75.1%	34.2%	30.8%
$100k – $200k	0.0%	24.4%	22.4%
Over $200k	0.0%	5.7%	7.1%

Demographics & statistics

636

Population

242

People per sq mi

59.7

Median age

Median household income

$43,931

Per capita income

$288,000

Median home value

Median monthly rent

82.5%

Home ownership

16.4%

Poverty rate

20.0%

Unemployment

236

Housing units

8.2%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	64	10.1%
18 and over	572	89.9%
65 and over	241	37.9%
Median age	59.7 years

Race & ethnicity

White 96.4%

Asian 3.5%

Two or more races 0.2%

Group	Count	%
White	613	96.4%
Asian	22	3.5%
Two or more races	1	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	24.9%	35.7%	39.8%
$50k – $100k	75.1%	34.2%	30.8%
$100k – $200k	0.0%	24.4%	22.4%
Over $200k	0.0%	5.7%	7.1%

Under $10k 19.2%

$10k–$15k 7.3%

$15k–$25k 14.7%

$35k–$50k 8.7%

$75k–$100k 17.1%

$100k–$150k 8.7%

$200k+ 24.1%

Range	% of households
Under $10k	19.2%
$10k–$15k	7.3%
$15k–$25k	14.7%
$35k–$50k	8.7%
$75k–$100k	17.1%
$100k–$150k	8.7%
$200k+	24.1%
Median income	$0

Housing

Home values

Under $50k 7.6%

$100k–$150k 12.3%

$150k–$200k 4.7%

$200k–$300k 30.5%

$300k–$500k 15.7%

$500k–$1M 29.2%

Housing overview

Metric	Value
Median home value	$288,000
Median rent / month	$0
Owner occupied	82.5%
Renter occupied	17.5%
Vacant	0.0%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.7
Avg household size (owned)	2.41

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	3.8%
1990–1999	0.0%
1980–1989	21.3%
1970–1979	46.5%
1960–1969	14.7%
1950–1959	5.6%
1940–1949	4.9%
1939 or earlier	3.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	36.4%
3 bedrooms	21.0%
4 bedrooms	37.8%
5+ bedrooms	4.9%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	31.1%
2 vehicles	21.3%
3 or more	47.6%

Heating fuel

Fuel type	%
Utility gas	9.4%
Electricity	19.9%
Propane / LP gas	10.5%
Fuel oil	40.6%
Wood	15.7%

Households & families

Household type	Count	%
Married-couple family	199	69.6%
Cohabiting couple	11	3.8%
Male householder, no spouse	55	19.2%
Female householder, no spouse	21	7.3%
Households with children under 18	40	14.0%
Households with seniors (65+)	101	35.3%
Average household size	2.21

Marital status

Status	Male	Female
Never married	6.9%	22.0%
Married	75.9%	70.1%
Separated	0.0%	0.0%
Widowed	5.6%	0.0%
Divorced	11.6%	7.8%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.2%

HS graduate 74.9%

Some college, no degree 7.5%

Associate's degree 9.3%

Bachelor's degree 1.4%

Graduate / professional 6.8%

Metric	%
HS diploma or higher	99.8%
Bachelor's or higher	8.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	16	51.6%
High school	15	48.4%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 26.4%

Manufacturing 25.0%

Construction 21.6%

Transportation & utilities 18.2%

Retail trade 8.8%

Occupation

Category	%
Management, business & arts	29.7%
Service	7.4%
Sales & office	33.8%
Natural resources & construction	0.0%
Production & transportation	29.1%

Employment type

Type	%
Private sector	100.0%
Government	0.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	90.5%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	9.5%
Other means	0.0%
Avg commute (minutes)	41.1

Poverty

All people 16.4%

Under 18 years 0.0%

18 and over 18.2%

Married-couple families 6.5%

Female-led households 0.0%

Income support

Source	% of households
Social Security	30.4%
Retirement income	54.5%
Supplemental Security	4.5%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	31.6%
High blood pressure	31.2%
High cholesterol	32.1%
Diabetes	10.3%
Heart disease	6.7%
Stroke	2.9%
Asthma	10.3%
Arthritis	27.7%
Kidney disease	2.7%
Pulmonary disease	7.4%
Cancer	6.7%

Behavior / access	%
Smoking	19.8%
Binge drinking	19.6%
No physical activity	23.3%
Less than 7 hrs sleep	36.6%
Depression	22.5%
Fair or poor health	14.2%
Poor mental health	15.6%
Poor physical health	10.7%
No health insurance	11.1%
Visited doctor (checkup)	77.2%
Visited dentist	64.0%
Cholesterol screening	89.2%
Teeth loss	13.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	79	13.8%

Disability	%
Any disability	12.4%
Under 18	0.0%
18–64 years	4.2%
65 and over	27.0%

Health insurance coverage

Type	%
Private insurance	82.5%
Public insurance	42.6%
No insurance	5.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	603	94.8%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	614	96.5%
Born in same state	614	96.5%
Born in different state	367	57.7%
Foreign born	0	0.0%
Naturalized citizen	22	3.5%
Not a US citizen	22	100.0%

Ancestry

Ancestry	Count	%
Arab	44	6.9%
French	42	6.6%

Ancestry	Count	%
Italian	30	4.7%

Technology access

Metric	% of households
Computer access	45.0%
Internet access	95.5%

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

Frequently asked questions about ZIP code 18331

What city is ZIP code 18331 in?

ZIP code 18331 is primarily assigned to Gilbert, Pennsylvania.

What county is ZIP code 18331 in?

ZIP code 18331 falls within Monroe County, Pennsylvania.

Does ZIP code 18331 have an older population?

38% of residents in ZIP code 18331 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 18331?

8% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 18331 mostly owner-occupied?

83% of occupied units in ZIP code 18331 are owner-occupied, well above the national average.

What is the poverty rate in ZIP code 18331?

16% of residents in ZIP code 18331 live below the poverty line, above the national average.

What timezone is ZIP code 18331 in?

ZIP code 18331 observes the EST timezone.