ZIP Code 18104: Population, Income, Housing

State: PA
Total population: 48,683 Household income: $94,601 Rent: $1,637

Overview

Total population
48,683
Rent
$1,637
Year built
1972
Household income
$94,601
Per capita income
$46,691
Poverty rate
8.3%
Unemployment rate
N/A
Household size
2.4 persons
Rent over 30% of income
46.3%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Demographics

State
Pennsylvania
County
Lehigh County
City
Allentown
Total population
48,683
Adults over 25
33,684
Total households
18,532
Household size
2.4 persons

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Income & Poverty

Household income
$94,601
Per capita income
$46,691
Poverty rate
8.3%
Unemployment rate
N/A
Rent over 30% of income
46.3%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Housing

Rent
$1,637
Year built
1972
Households that rent
29%
Households that own
71%
Rooms per home (all homes)
6.3

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Race

White
68.2%
Black
7.1%
Asian
7%
Two or more races
11.4%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Ethnicity

Hispanic or Latino
17.1%
Not Hispanic or Latino
82.9%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Commute

Commute rate
18,693 (80.3%)
Commute time to work
21 mins
Work from home
4,585 (19.7%)

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

Education

Less than high school
17.6%
High school graduate or GED
27.4%
Some college or associate degree
8.9%
Bachelor’s degree or higher
46.1%

Note: Rent, income, and year built are shown as median values, while household size is shown as an average (see explanations below).

ZIP data use Census ZCTAs, which closely match USPS ZIP Codes in most cases (see FAQ for details).

Data are sourced from the American Community Survey (ACS) 5-Year Estimates, 2024 release — the latest dataset currently available. New 5-year estimates are published annually, about 6–12 months after the end of each reference year.

 

Comparison of ZIP Code 18104 with: Lehigh County, PA Allentown metro area, PA-NJ Pennsylvania United States

ZIP 18104

Total population48,683
Rent$1,637
Year built1972
Household income$94,601
Per capita income$46,691
Poverty rate8.3%
Unemployment rateN/A

Lehigh County, PA

Total population378,792
Rent$1,383
Year built1968
Household income$80,079
Per capita income$43,088
Poverty rate11.6%
Unemployment rate3.4%

Allentown Metro Area, PA-NJ

Total population873,603
Rent$1,365
Year built1970
Household income$84,587
Per capita income$44,264
Poverty rate10.2%
Unemployment rate3.9%

Pennsylvania State

Total population13,018,639
Rent$1,209
Year built1965
Household income$77,971
Per capita income$44,355
Poverty rate11.7%
Unemployment rate3.6%

United States

Total population334,922,499
Rent$1,413
Year built1980
Household income$80,734
Per capita income$44,673
Poverty rate12.5%
Unemployment rate4%
Metric ZIP18104 CountyLehigh, PAMetro AreaAllentown metro area, PA-NJStatePennsylvaniaCountryUnited States
Total population48,683378,792873,60313,018,639334,922,499
Rent$1,637$1,383$1,365$1,209$1,413
Year built19721968197019651980
Household income$94,601$80,079$84,587$77,971$80,734
Per capita income$46,691$43,088$44,264$44,355$44,673
Poverty rate8.3%11.6%10.2%11.7%12.5%
Unemployment rateN/A3.4%3.9%3.6%4%

View the full multi-level comparison →

 

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Summary for 18104

Rent & Income

In 18104, the typical monthly rent is $1,637 and the typical household income is $94,601. Rent here is higher than Pennsylvania, and household income is higher than Pennsylvania. The estimated poverty rate is 8.3%.

Housing & Affordability

This ZIP Code is primarily owner-occupied, with renters accounting for about 29% of households. About 46.3% of renters spend more than 30% of their income on housing, indicating high cost burden.

Education & Employment

Educational attainment is very high, with about 46.1% of adults holding a bachelor’s degree or higher.

 

ZIP 18104 — Rent vs Household Income

 

 

ZIP 18104 — Poverty

 

 

How ZIP 18104 compares in Pennsylvania (107 ZIP Codes)

Metric This ZIP Rank Starts from State range
Rent $1,637 86 / 107 from lower rent $725 – $2,177
Household income $94,601 37 / 107 from higher income $31,069 – $171,179
Poverty rate 8.3% 41 / 107 from lower poverty 2.5% – 48.2%

Rankings are calculated among ZIP Codes in Pennsylvania with total population > 30,000 (year 2024).

 

Detailed Ranking Explanation for ZIP Code 18104

Rent

For rent, this ZIP is positioned 86th out of 107 ZIP Codes in Pennsylvania. In Pennsylvania as a whole, the range goes from $725 in ZIP 16101 up to $2,177 in ZIP 19087.

Household income

For household income, ZIP Code 18104 ranks 37th out of 107 ZIP Codes. Statewide, values range from $31,069 in ZIP 15213 up to $171,179 in ZIP 19087.

Poverty rate

For poverty levels, this ZIP is positioned 41st out of 107 ZIP Codes. Across Pennsylvania, figures vary from 2.5% in ZIP 19335 up to 48.2% in ZIP 15213.

 

💰 Rent in ZIP Code 18104 (with Utilities)

Estimated Monthly Rent: $1,637 ℹ️ What’s Included:
✅ Base rent, electricity, gas, water/sewer, and heating fuels
❌ Not included: internet, cable TV, renter's insurance, parking

💡 What does this rent estimate mean?

Explanation: This estimate shows what renters typically pay each month for housing — including the apartment or home and essential utilities like heat, water, and electricity.

Included in this number: Rent plus electricity, gas, water/sewer, and heating fuel.

Not included: Internet, cable, parking, renter’s insurance, or furniture rental.

Note: This cost does not depend on the number of people living in the home.

👨‍👧‍👦 Household Income in ZIP Code 18104

Annual Household Income: $94,601

💡 What does Household Income mean?

Definition: This represents the middle value of all household incomes in the ZIP code — half of households earn less, and half earn more.

Includes: wages, salaries, self-employment income, Social Security, pensions, investments, unemployment, public assistance, and rental income.

Does NOT include: capital gains, non-cash benefits (like food stamps), or tax refunds.

Household = any group of people (or a single person) living in the same housing unit.

Example: A couple earning $40,000 and $30,000 together have a household income of $70,000. If that's in the middle of all local incomes, it's the value shown here.

📉 Poverty Rate in ZIP Code 18104

Estimated Rate: 8.3%

💡 What does the Poverty Rate represent?

Definition: The percentage of people in this area living below the federal poverty threshold.

How it works: The threshold is a dollar amount set by the U.S. Census Bureau that varies by family size and age. If a household's income is below that level, everyone in it is included in this rate.

Example: In a town of 10,000 people, if 1,500 have incomes below the poverty line, the poverty rate is 15%.

Note: This statistic only includes people living in households; it does not count those in student housing, military barracks, or nursing homes.

🏘️ Renter vs. Owner Households in ZIP Code 18104

In ZIP Code 18104, households that rent: 5,374 (29%)

📊 What does the renter household percentage reveal about this ZIP Code?
Household Type Count Share
Renter-Occupied 5,374 29%
Owner-Occupied 13,158 71%

Definition: This is the percentage of households that rent their home rather than own it. It includes only occupied housing units.

Why it matters: Areas with a high share of renter households often have younger populations, higher mobility, and different housing needs compared to mostly owner-occupied areas.

Example: If 65% of homes in an area are renter-occupied, it means 65 out of every 100 households rent their home.

📉 Renters Spending Over 30% of Income on Rent in ZIP Code 18104

In ZIP Code 18104, cost-burdened renters (households spending over 30% of income on housing): 2,488 (46.3%)

🏚️ What Does It Mean When Renters Spend Over 30% of Their Income on Housing?
Household Group Households Share
Cost-burdened renters (over 30%) 2,488 46.3%
Other renter households 2,886 53.7%
Total renter households 5,374 100%

Shares are calculated as a percentage of renter households.

This shows how many renters in the ZIP code are considered cost-burdened — meaning they spend more than 30% of their income on housing (rent and basic utilities).

It’s a sign that housing might be unaffordable in the area or that lower-income residents may be struggling with rent.

Data comes from the U.S. Census Bureau’s American Community Survey.

📊 Education Levels in ZIP Code 18104

Less than High School: 5,931 people (17.6%)

Includes adults who did not complete high school.

High School Graduate or GED: 9,238 people (27.4%)

Includes adults whose highest education is a high school diploma or GED.

Some College or Associate Degree: 2,999 people (8.9%)

Includes adults who attended college without completing a bachelor’s degree (some college or associate degree).

Bachelor’s Degree or Higher: 15,516 people (46.1%)

Includes adults with a bachelor’s degree or higher (bachelor’s, master’s, professional, or doctoral degree).

👥 Total Adults (25+): 33,684

ℹ️ Have questions about how these statistics are calculated? See our data methodology & FAQs

 

Source: ACS 5-Year Estimates (U.S. Census Bureau) — unemployment rate from BLS. Some values are derived metrics.