PlainZIP

Center Valley, PA · standard

ZIP Code 18034

Lehigh County, Pennsylvania - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

8,256
281/sq mi
$153,200
Median income
$475,900
Median home value
51.6%
Bachelor's or higher

The verdict

Center Valley pairs a top-decile household income with upper-quartile home values, in a low-density, homeowner-dominated area.

Top 4%
household income, US ZIPs
Top 14%
home value, US ZIPs
281
people per sq mi
89%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 18034 against every reporting US ZIP.

ZIP code 18034 is a mid-sized community (a standard USPS delivery area) in Center Valley, Lehigh County, Pennsylvania, home to 8,256 residents across 29.4 square miles, a density of 281 people per square mile, in the New York time zone.

ZIP 18034 skews affluent, with a median household income of $153,200 (97% above the Pennsylvania average), while per-capita income is $80,798. Poverty here runs at 5.7%, with unemployment measured at 2.5%. Median home value sits at $475,900 (109% above the state average), median rent at $1,760 a month, and owner-occupancy at 88.5%.

This is a highly-educated ZIP: 51.6% of adults hold a bachelor's degree or higher, the median age is 42.5, and the average commute is -. To put 18034 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Lehigh County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 18034

Top 5 sectors by establishment count in Center Valley, PA

Which industries have the most business establishments in ZIP 18034.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 18034, Center Valley, PA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

8,256

Population

29.4

Area (sq mi)

281

People / sq mi

New York

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 18034?

42.5

Median Age

48.7%

Male

51.3%

Female

7.2%

Foreign-Born

White 83.6%
African American 2.3%
Asian 6.7%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.2%
Hispanic or Latino 4.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$153,200

Median Household Income

+97% vs state

$80,798

Per Capita Income

5.7%

Poverty Rate

2.5%

Unemployment Rate

How ZIP 18034 ranks nationally

Center Valley, PA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$153,200 Top 4% higher than 96% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Below this entry. $140,000–$160,000: 686 US ZIPs (2%). This entry sits in this band. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 75.8%
Bachelor's Degree or Higher 51.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

3,029

Total Housing Units

2,922

Occupied Units

107

Vacant Units

2.76

Avg Household Size

Occupancy Type

Owner 88.5%
Renter 11.5%

$475,900

Median Home Value

+109% vs state

$1,760

Median Rent

1991

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+20.2%

YoY Change (2024)

245

HPI Index (2000 = 100)

+145%

Total Change Since 2000

Home values in ZIP 18034 have increased 20.2% over the past year (2024). Since 2000, this ZIP has seen +145% cumulative appreciation.

Year Annual Change HPI Index
2020 +4.1% 163
2021 +10.9% 181
2022 +10.2% 200
2023 +1.9% 203
2024 +20.2% 245

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 266 business establishments in ZIP 18034, employing approximately 8,193 people with a combined annual payroll of $643,359,000.

266

Businesses

8,193

Employees

$643.4M

Annual Payroll

16

Industry Sectors

Industry Establishments % of Total
Retail trade 42 15.8%
Finance and insurance 32 12.0%
Health care and social assistance 31 11.7%
Professional, scientific, and technical services 27 10.2%
Construction 24 9.0%
Accommodation and food services 22 8.3%
Real estate and rental and leasing 16 6.0%
Other services (except public administration) 15 5.6%
Administrative and support and waste management and remediation services 13 4.9%
Wholesale trade 12 4.5%
Transportation and warehousing 9 3.4%
Information 7 2.6%
Management of companies and enterprises 6 2.3%
Manufacturing 4 1.5%
Educational services 3 1.1%
Arts, entertainment, and recreation 3 1.1%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 18034 vs 18036 →

ZIP 18034 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 18034 ranks #8 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 18034 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 18034 ranks the highest of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
18036 Coopersburg, PA 12,822 2.9 mi
18015 Bethlehem, PA 32,832 4.0 mi
18103 Allentown, PA 45,336 3.9 mi
18018 Bethlehem, PA 32,413 5.9 mi
18049 Emmaus, PA 17,341 4.8 mi
18016 Bethlehem, PA 0 6.3 mi
18101 Allentown, PA 3,897 4.9 mi
18109 Allentown, PA 16,932 6.6 mi
18935 Milford Square, PA 116 7.4 mi
18102 Allentown, PA 49,779 5.5 mi

More ZIP Codes in Lehigh County

18102 standard
Allentown, PA
Pop: 49,779
18103 standard
Allentown, PA
Pop: 45,336
18104 standard
Allentown, PA
Pop: 43,236
18018 standard
Bethlehem, PA
Pop: 32,413
18052 standard
Whitehall, PA
Pop: 26,902
18062 standard
Macungie, PA
Pop: 24,351

Related Areas

Lehigh County Center Valley, PA Pennsylvania

Frequently Asked Questions

What county is ZIP code 18034 in? ▼
ZIP code 18034 (Center Valley) is located in Lehigh County, Pennsylvania. Lehigh County contains multiple ZIP codes, see the full list at /counties/lehigh-pa.
What is the population of ZIP code 18034? ▼
ZIP code 18034 in Center Valley, PA has a population of 8,256 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 18034? ▼
The median household income in ZIP 18034 is $153,200, which is 101% above the national average of $76,288.
What is the average home value in ZIP 18034? ▼
The median home value in ZIP 18034 is $475,900, which is 71% above the national average of $278,155.
What is the demographic makeup of ZIP 18034? ▼
The largest racial group in ZIP 18034 is White at 83.6%. Hispanic or Latino residents make up 4.0% of the population.
How many businesses are in ZIP code 18034? ▼
ZIP code 18034 has 266 business establishments employing approximately 8,193 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 18034? ▼
The top industries by establishment count in ZIP 18034 are: Retail trade (42), Finance and insurance (32), Health care and social assistance (31). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 18034? ▼
According to the FHFA House Price Index, home values in ZIP 18034 increased by 20.2% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 145%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 18034? ▼
In ZIP code 18034, 75.8% of residents aged 25+ have a high school diploma or higher, and 51.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 18034? ▼
In ZIP code 18034, approximately 88.5% of occupied housing units are owner-occupied and 11.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 18034? ▼
The poverty rate in ZIP code 18034 is 5.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.