Lewis township, Northumberland County, PA

Township in Northumberland County, PA, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

1,966

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

45.7

years ∙ half population younger than 45.7, half older

Diversity Index

5.3%

chance two random people differ in race and ethnicity

Nativity

1.7%

foreign-born population

98.3%Native

1.7% Foreign-born

Geographic Context

Location, size, and surroundings

About

Lewis township, Northumberland County is a township in Northumberland County, Pennsylvania, United States.

Location

Township in Northumberland County, PA, US

Co-ordinates

DEC41.113571° N, 76.769764° W

DMS41° 06′ 48.86″ N, 76° 46′ 11.15″ W

Population Density & area

74.47/sq mi (28.74/km²)

Total Area

26.4 sq mi (68.5 km²)

Land Area

26.4 sq mi (68.4 km²) · 99.91%

Water Area

0 sq mi (0.1 km²) · 0.09%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

47.4% male

Male 47.4%

Female 52.6%

males per 100 females

Lewis township 90

Northumberland County 103.9

Pennsylvania 97.2

Nativity

1.7%

foreign-born population

98.3%Native

1.7% Foreign-born

% Foreign-born

Lewis township 1.7%

Northumberland County 1.6%

Pennsylvania 7.7%

Age Distribution

How the population is spread across age groups

Median Age

45.7

years ∙ half population younger than 45.7, half older

Lewis township

45.7

Northumberland County

44.5

Pennsylvania

40.9

Dependency ratio

74.6

dependents per 100 working-age adults

Lewis township 74.6

Northumberland County 72.4

Pennsylvania 66.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Lewis township	Northumberland County	Pennsylvania
Age Group
Children (Under 18)	21.8%	19.7%	20.4%
Working age (18-64)	57.3%	58%	60.1%
Senior (65+)	20.9%	22.3%	19.5%
Dependency ratio
Total dependency ratio	74.6	72.4	66.4
Child dependency ratio	38.1	33.9	34
Old-age dependency ratio	36.5	38.5	32.4

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

97.3%

Black

Asian

0.4%

Hispanic

2.1%

Other

0.2%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

5.3%

chance two random people differ in race and ethnicity

Lewis township 5.3%

Northumberland County 20.9%

Pennsylvania 44.6%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Lewis township population

	Lewis township	Northumberland County	Pennsylvania
Hispanic or Latino	2.1%	5.2%	8.7%
Mexican	0.8%	0.9%	1.4%
Puerto Rican	0%	2.5%	3.7%
Cuban	0.3%	0.1%	0.2%
Other Hispanic / Latino	1.1%	1.7%	3.4%
Not Hispanic or Latino	97.9%	94.8%	91.3%
One race	97.6%	92.2%	87.7%
White	97.3%	88.7%	73%
Black or African American	0%	2.6%	10.3%
American Indian and Alaska Native	0%	0%	0.1%
Asian	0.4%	0.4%	3.8%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0%	0.5%	0.5%
Two or more races (Multiracial)	0.3%	2.6%	3.6%

Household & Families Composition

Household size, type, and family structure

Household structure

78.4% family

Family 78.4%

Non family 21.6%

% family households

Lewis township 78.4%

Northumberland County 62.5%

Pennsylvania 62.4%

Average household size

2.7

persons per household

Lewis township

2.7

Northumberland County

2.29

Pennsylvania

2.39

Household & Family COMPOSITION

Households

Percentage of Lewis township population

	Lewis township	Northumberland County	Pennsylvania
Total households	727	37,886	5,274,853
Average houshold size	2.7	2.29	2.39
Family households	570	23,678	3,291,192
Average family size	3.02	2.86	3.01
Married couple family	506	17,568	2,437,812
Other families	64	6,110	853,380
Male householder	24	2,397	246,246
Female householder	40	3,713	607,134
Non-family households	157	14,208	1,983,661
One-person households	105	12,124	1,629,974
Male householder	46	5,727	733,485
Senior (65+) living alone	22	2,189	246,162
Female householder	59	6,397	896,489
Senior (65+) living alone	33	4,009	477,851
Other living arrangements	52	2,084	353,687

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

763

housing units

Lewis township 763

Northumberland County 43,395

Pennsylvania 5,806,452

Occupancy status

95.3% occupied

Occupied 95.3%

Vacant 4.7%

vacancy rate

Lewis township 4.7%

Northumberland County 12.7%

Pennsylvania 9.2%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

94.1%

Single family houses

94.1%

Apartments in multi-unit structures

Mobile homes

5.9%

Boat, RV, van, etc

Median Year Built

1976

Half of houses were built before 1976, and half after.

Historic ∙ 1939 or earlier

24%

Postwar & mid-century ∙ 1940 - 1969

13.6%

Late 20th century ∙ 1970 - 1999

45.8%

Modern ∙ 2000 or later

16.5%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Lewis township	Northumberland County	Pennsylvania
Rooms per unit
Median rooms	7	6.3	6
1–3 rooms	3.5%	6.8%	11.7%
4–6 rooms	36.1%	48%	47.7%
7+ rooms	60.4%	45.2%	40.7%
Bedrooms
No bedroom / studio	0%	1.2%	2.3%
1 bedroom	5.5%	8.4%	10.4%
2 bedrooms	12.5%	21.6%	22.5%
3 bedrooms	43.8%	47.8%	42.3%
4+ bedrooms	38.3%	21%	22.6%
At a glance
Median year built	1976	1957	1966
Total housing units	763	43,395	5,806,452

Occupancy Profile

Who is inside and how they use it

Homeownership

89.5% owners

Renter-occupied 10.5%

Owner-occupied 89.5%

homeownership rate

Lewis township 89.5%

Northumberland County 75.5%

Pennsylvania 69.3%

Average household size

2.77

Owner-occupied

2.17

Renter-occupied

owner-occupied average size

Lewis township 2.77

Northumberland County 2.38

Pennsylvania 2.53

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Lewis township	Northumberland County	Pennsylvania
Total occupied units	727	37,886	5,274,853
Year moved in
2020 or later	11.4%	17%	20.2%
2010 to 2019	25.3%	33%	36.1%
2000 to 2009	23.5%	17.4%	17.5%
1999 or earlier	39.8%	32.6%	26.2%
Occupants per room
1.00 or fewer	98.1%	99.1%	98.4%
1.01 to 1.50	1.9%	0.5%	1%
1.51 or more	0%	0.4%	0.6%
Vehicles availability
No vehicles	9.4%	9.2%	10.4%
1 vehicle	21.5%	34.9%	35.1%
2 vehicles	38.4%	34.5%	35.9%
3 or more vehicles	30.8%	21.3%	18.6%
House heating fuel used
Gas	17.6%	31.9%	56.4%
Electricity	33.8%	29.8%	25.3%
Solar	0.8%	0.1%	0.1%
Fuel oil, kerosene etc	23.7%	29.4%	14%
All other fuels	24.1%	8.3%	3.7%
No fuel used	0%	0.5%	0.5%
Selected characteristics
Lacking complete plumbing	1.7%	0.3%	0.4%
Lacking complete kitchen	0.4%	0.7%	0.8%
No telephone service available	1.2%	0.8%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$240,500

owner-occupied units

Median value(USD)

Lewis township

$240,500

Northumberland County

$162,400

Pennsylvania

$254,500

Housing Cost Burden

33.6%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

33.6%

Owners without a mortgage

19.8%

Renters

22.7%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Lewis township	Northumberland County	Pennsylvania
Property value
Median Value	$240,500	$162,400	$254,500
Under $100,000	14.6%	32.6%	13.9%
$100,000 - $200,000	18.7%	26.9%	22.4%
$200,000 - $300,000	33.8%	24%	22.9%
$300,000 - $500,000	22.9%	13.1%	25.9%
$500,000 - $1,000,000	8.8%	2.9%	12.8%
$1,000,000 and more	1.2%	0.5%	2.1%
Owner-occupied households
With a mortgage	55.8%	50.5%	58%
Without a mortgage	44.2%	49.5%	42%
Median monthly owner costs
With a mortgage	$1,552	$1,300	$1,762
Without a mortgage	$559	$537	$644
Gross rent
Median rent	$950	$806	$1,209

Education Profile

How educated is the community and how education pays off

Adults with a college degree

19.1%

of adults 25+ with a bachelor's degree or higher

Lewis township 19.1%

Northumberland County 19.4%

Pennsylvania 35.2%

Adults without a high school diploma

15.8%

of adults (25+) without a high school diploma

Lewis township 15.8%

Northumberland County 9.7%

Pennsylvania 7.9%

School Enrollment

Who is enrolled in school and at what level

School enrollment

405

population (age 3+) enrolled in school

Nursery / Preschool

1.7%

K–12

81.7%

College / Undergraduate

9.9%

Graduate / Professional

6.7%

College-going rate (18-24 yr olds)

15.7%

of 18-24-year-olds in college or graduate school

Lewis township

15.7%

Northumberland County

24.6%

Pennsylvania

44%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Lewis township	Northumberland County	Pennsylvania
Total enrolled (age 3+)	405	16,891	2,913,513
Nursery / preschool	1.7%	3.7%	5.7%
K–12	81.7%	79.6%	66.9%
Kindergarten	0.5%	5.2%	4.8%
Elementary: Grades 1–4	29.9%	23.8%	19.7%
Elementary: Grades 5–8	26.2%	24.4%	20.7%
High School: Grades 9–12	25.2%	26.2%	21.7%
College or graduate school	16.5%	16.7%	27.4%
College, undergraduate	9.9%	13.9%	21.2%
Graduate, professional school	6.7%	2.8%	6.2%
College-going rate · 18-24 yr olds	15.7%	24.6%	44%
School type
Public school	68.9%	80.6%	75.3%
Private school	31.1%	19.4%	24.7%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

1,416

population 25 years and over

Total adults (25+)

Less than 9th grade

8.5%

9th-12th, no diploma

7.3%

HS graduate

40%

Some college no degree

14.8%

Associates degree

10.2%

Bachelors degree

12.8%

Graduate or professional degree

6.4%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

61.7% · 38.3%

9th-12th, no diploma

36.5% · 63.5%

HS graduate

55.7% · 44.3%

Some college no degree

51.9% · 48.1%

Associates degree

47.6% · 52.4%

Bachelors degree

40.9% · 59.1%

Graduate or professional degree

37.8% · 62.2%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Lewis township	Northumberland County	Pennsylvania
Population (25+)	1,416	66,545	9,189,697
Less than 9th grade	8.5%	2.4%	2.9%
9th–12th, no diploma	7.3%	7.3%	5%
High school diploma or GED	40%	47%	32.9%
Some college, no degree	14.8%	15%	15.1%
Associate's degree	10.2%	8.9%	8.9%
Bachelor's degree or higher	19.1%	19.4%	35.2%
Bachelor's degree	12.8%	13.4%	20.9%
Graduate or professional	6.4%	6%	14.3%
High School or higher	84.2%	90.3%	92.1%

Earnings by education level

percentage as applicable

Median Earnings

$49,375

Median earnings for adults 25+, by level

Less than HS graduate

$50,855

HS graduate

$35,800

Some college or associates

$53,125

Bachelors degree

$73,269

Graduate or professional degree

$71,833

Poverty Rate

for ages 25+, with bachelors degree or higher

Less than HS graduate

18.3%

HS graduate

11.8%

Some college or associates

7.6%

Bachelors degree or higher

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Lewis township	Northumberland County	Pennsylvania
Median earnings
Population 25+, with earnings	$49,375	$45,127	$53,549
Less than high school graduate	$50,855	$31,421	$33,591
High school graduate (includes equivalency)	$35,800	$37,714	$40,643
Some college or associate's degree	$53,125	$44,670	$47,736
Bachelor's degree	$73,269	$63,764	$69,335
Graduate or professional degree	$71,833	$79,854	$87,132
Poverty rates
Less than high school graduate	18.3%	24.7%	25.2%
High school graduate (includes equivalency)	11.8%	13.7%	13.3%
Some college or associate's degree	7.6%	8.5%	9.1%
Bachelor's degree or higher	0%	3.5%	4.1%

Insights for Lewis township, Northumberland County, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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