Pennsylvania · Census place 4206088

Bethlehem, Pennsylvania

Bethlehem is a city in 2 counties of Pennsylvania with an estimated 79,453 residents on July 1, 2024. It is the 6th largest of 597 incorporated places of 1,000+ people in the state.

Population 2024
79,453
#6 of 597 in Pennsylvania
Change since 2020
+4.9%
+3,747 people
Land area
19.1 sq mi
+ 0.35 sq mi water
Density
4,158 / sq mi
State median 3,911
Orange pin: Bethlehem. Shaded: counties it spans. Dark pin: Harrisburg.

Bethlehem population, 2020 to 2024

Bethlehem added 3,747 residents from July 2020 to July 2024, a change of +4.9%. In the latest year it moved by +618. Among 193 Pennsylvania places of 5,000 or more, that growth ranks 16th; the median place changed by +0.2%. The median place of 5,000+ in Pennsylvania has 8,364 people, so Bethlehem is 9.5 times that size.

75.7k202077.9k202177.8k202278.8k202379.5k2024
July 1 estimates. The April 2020 estimates base was 75,795. The axis starts above zero so yearly changes are visible.

Bethlehem covers 19.11 square miles of land and 0.35 of water, for 4,158 people per square mile of land. The median Pennsylvania place of 5,000+ has 3,911, so Bethlehem is close to the typical town.

The 2 counties Bethlehem spans

Bethlehem crosses county lines. The Census county-part estimates split its 79,453 residents as follows; Northampton County holds 74.3% of them. The shaded shapes are on the map above; dots mark the eight nearest places.

  1. 01Northampton County59,069
  2. 02Lehigh County20,384
Residents inside each county, Census Vintage 2024 county-part estimates (SUMLEV 157).

ZIP codes in Bethlehem

3 ZIP Code Tabulation Areas (ZCTAs) overlap Bethlehem by at least 10% of the ZCTA's or the city's land: 18015, 18017, 18018. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Bethlehem is

The Census internal point of Bethlehem is at 40.626400, -75.367900. Harrisburg, the capital, is 83.6 miles WSW in a straight line. The nearest larger place is Allentown, PA (127,138 people), 6.2 miles away.

Internal point

Decimal
40.626400, -75.367900
DMS
40°37'35.04"N 75°22'4.44"W
UTM
18N 468885.0E 4497350.3N
Geohash
dr4rhgycb
Plus code
87G6JJGJ+HR

Daylight in Bethlehem

At 40.63° N, Bethlehem gets about 15 h 05 min of daylight around the June solstice and 9 h 16 min around the December solstice, a swing of 5 h 49 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Bethlehem

The eight nearest incorporated places of 1,000+ in Pennsylvania, measured between internal points. The closest is Freemansburg, 1.5 miles away, with 2,973 people.

Questions people ask

What is the population of Bethlehem, PA?

79,453 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 3,747 (4.9%) from 75,706 in July 2020.

What county is Bethlehem in?

It spans 2 counties: Northampton County (59,069 residents), Lehigh County (20,384 residents).

What ZIP codes cover Bethlehem?

3 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 18015, 18017, 18018.

How far is Bethlehem from Harrisburg?

83.6 miles (134.5 km) in a straight line, heading WSW from Bethlehem.

What is the nearest larger city to Bethlehem?

Allentown, PA, with 127,138 residents, 6.2 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)

How every number is computed: methodology. Spotted a wrong figure? Report an error.