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Lehigh County, Pennsylvania

Single-family vs. condo trends, market pressure signals, and 5-year price history. Source: Redfin.

Median Sale Price
$335,400
+37.2% YoY
Active Inventory
352
Days on Market
14 days
Price Drops
25.3%

Single-Family vs. Condo

Source: Redfin (property-type breakdown)
Single-Family Median
$425,000
+9.3% YoY
Condo / Co-op Median
$327,450
+7.4% YoY
SFR vs. Condo YoY Gap
+1.9%
SFR outperforming condos
DOM: SFR vs. Condo
15d / 8d
SFR / Condo

Buyer vs. Seller Market Indicators

Latest month — Redfin
Months of Supply
1.4 mo
Seller market

Inventory ÷ monthly sales. Below 3 = strong seller market; 3-6 balanced; above 6 = buyer market.

Sale-to-List Ratio
100.9%
Bidding-war territory

Median closing price ÷ original list price. Above 100% = homes routinely closing above asking.

% Sold Above List
41%
Mixed

Share of closed sales priced above asking. The single cleanest read on bidder competition.

What does your sqft target cost in Lehigh County, Pennsylvania?

$185/sqft median (Redfin)
+$0 adj
+$0 adj
optional
Estimated price
$370,479
Above median (+10% vs median)
Region median
$335,400
all homes
Price-tier reverse lookup — what sqft does each price band buy?
$600,000
≈ 3,239 sqft
$1,200,000
≈ 6,478 sqft
$2,000,000
≈ 10,797 sqft
$5,000,000
≈ 26,992 sqft

Estimate = (median $/sqft × your sqft) + bed/bath/lot adjustments. Bed and bath adjustments use Appraisal Institute / Fannie Mae standard rules of thumb (~$15K/extra bedroom, ~$20K/extra bathroom vs. a 3bd/2ba baseline; half-bath = half adj). Lot premium is a $1.50/sqft heuristic beyond a 6,000 sqft baseline — accuracy varies sharply by urban infill vs. acreage market. Quality, condition, year built, and HOA are not modeled here. For a deeper county-level hedonic AVM, see AVM Lite.

Rent + invest vs. buy + own — backtested

15-yr rolling history · S&P 500
Property type:
Upfront capital committed (both paths): $77K = 20% down + 3% closing on a $335K home
BUY + OWN
Median ending wealth $295K $180K real
Net gain on $77K upfront: $217K
Range: $295K → $295K
Wealth = home value (appreciated at 3%/yr) − remaining mortgage − 6% selling cost. Gain = wealth − upfront. Leveraged appreciation on full $335K asset comes from the 20% down.
RENT + INVEST
Median ending portfolio $581K $392K real
Net gain on $181K contributed: $400K
Range: $264K → $1.58M
Same upfront cash + each year's (own − rent) surplus invested in S&P 500 at actual annual returns. Median renter contributed $181K total.
Median wealth delta: $286K in favor of RENT + INVEST
What if you'd started in a recent year? (most-recent 15yr window: 2011–2025)
WindowBuy wealthBuy gainRent wealthRent gainWealth delta
2011–2025$295K$217K$870K$690K$576K rent
2010–2024$295K$217K$890K$709K$595K rent
2009–2023$295K$217K$864K$683K$569K rent
2008–2022$295K$217K$562K$381K$267K rent
2007–2021$295K$217K$724K$544K$430K rent
2006–2020$295K$217K$623K$442K$328K rent
2005–2019$295K$217K$556K$376K$262K rent
2004–2018$295K$217K$459K$279K$165K rent

Educational tool, not investment or real-estate advice. Past performance does not guarantee future results. Backtests use actual annual total returns including dividends from S&P 500 (Damodaran (NYU Stern) annual total return (with dividends), 1957-present.).

Buyer model: 30-yr fixed mortgage, P&I + property tax + insurance + maintenance (1% of value/yr) + HOA. Selling cost = 6%. Investor model: down payment + annual cashflow surplus invested in the chosen index at that calendar year's actual return.

Tax model: pre-tax comparison. Toggle "after-tax mode" to apply MID, SALT, LTCG, and the Sec 121 capital-gains exclusion.

This calculator does not adjust for: PMI (assumed 20%+ down), differential transaction costs by state, lifestyle factors (commute, schools, kids), illiquidity / forced-sale risk, or insurance availability constraints (e.g., FL/CA wildfire). Consult a fiduciary advisor and tax professional before acting on any of this.

Market Pressure Signals

Derived from Redfin trend
Inventory vs. Long-Term Avg
-16.9%
deficit — seller leverage
DOM vs. 24-Mo Avg
+2.8%
currently 14 days
Long-Term Avg Inventory
424
Long-Term Avg DOM
14 days

Mortgage & Price Stress

State HPI + national delinquency
State HPI YoY
+5.5%
positive — appreciating
State HPI vs. Peak
0.0%
at or near peak peak 2025-10-01
National Mortgage Delinquency
1.89%
benchmark — 2026-01-01 county-grain delinquency requires paid data

State-grain HPI YoY + drawdown from peak is the cleanest free price-stress proxy. The national delinquency rate gives the macro mortgage-stress backdrop. True county-level mortgage delinquency lives in paid datasets (MBA NDS, CoreLogic LP).

Value Ratios

Median home price ÷ county median income
Value / Income
4.3×
stretched
Median Household Income
$77,493
Census ACS B19013

Historically affordable markets sit at 3–4× income; over 5× is stretched, over 6× is severely overvalued. Lower ratios point to bargain opportunities.

Housing Stock & Owners

Census ACS 5-year (B19013, B01003, B25002, B25003, B25034, B25007)
Population
375,408
total residents
Total Housing Units
150,547
all units, occupied + vacant
Vacancy Rate
4.7%
tight
Homeownership Rate
65.2%
of occupied units owner-occupied
Boomer Owners (65+)
20.6%
of homeowner households
Millennial / Gen-X Owners (35-54)
6.4%
of homeowner households
Pre-1949 Housing Stock
30.0%
structures built before 1949

When boomer-owner share is high, expect more inventory hitting the market over the next decade as homes transition. High vacancy + high old-stock often signals deferred-maintenance markets where buyers can negotiate.

Net Migration (IRS Tax Returns)

IRS Statistics of Income — Migration Data
Net Migration
+390
losing people (2022–2023)
Inbound Returns
7,702
12,978 people moved in
Outbound Returns
7,726
12,588 people moved out
Net Returns
-24
household-filer basis

Top 5 Origins (where movers came from)

  1. Northampton, Pennsylvania — 2,394 returns
  2. Berks, Pennsylvania — 490 returns
  3. Bronx, New York — 431 returns
  4. Bucks, Pennsylvania — 385 returns
  5. Montgomery, Pennsylvania — 377 returns

Top 5 Destinations (where movers went)

  1. Northampton, Pennsylvania — 2,664 returns
  2. Berks, Pennsylvania — 546 returns
  3. Montgomery, Pennsylvania — 369 returns
  4. Philadelphia, Pennsylvania — 341 returns
  5. Carbon, Pennsylvania — 297 returns

IRS Statistics of Income tracks county-to-county migration via tax-return change-of-address. Net migration uses the exemption count (a proxy for people, including dependents). True net flow can lag by 1–2 years vs. real-time movements.

Who's Moving In (Census ACS)

Source: Census ACS B07001 (5-year)
Inbound Movers (1 yr)
19,288
5.19% of pop. — moved here from outside the county
From Other States
8,040
2.17% of pop. — interstate inbound
From Abroad
1,496
moved into the county from outside the U.S.
Same House 1 Year Ago
89%
stable residents

Census ACS asks where people lived 1 year ago, so this counts inbound movers but does not show outbound — true net migration would require IRS SOI parsing.

Trends

Up to 5 years of monthly data

Median Sale Price

Trailing 12 months

Active Inventory

Trailing 12 months

Days on Market

Trailing 12 months

Looking for state-level data? See Pennsylvania statewide stats →

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