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3-digit ZIP regional index

Home appreciation in ZIP codes 523xxMarion, IA area

FHFA HPI® data shows the regional home price index for ZIP codes beginning with 523 changed +6.1% over the year to Q2 2026, compared with +3.2% for Iowa and +3.0% for the United States.

The region covers ZIP codes 52301–52362. Most of its 2010 population lived in Linn County (34%), Johnson County (19%), Benton County (11%). Communities in the region include North Liberty, Washington, Vinton, Mount Vernon, Monticello. This is a regional index, not a ZIP5, street, or individual-home estimate.

1-year change
+6.1%

Year to Q2 2026

5-year change
+38.1%

vs U.S. +41.3%

Since Q1 1995
+183%

vs U.S. +292%

National rank (1 year)
133rd

of 882 ZIP3 regions

ZIP3 523 vs Iowa and the U.S.

FHFA HPI® all-transactions index, rebased so Q1 1995 = 100, through Q2 2026

1002003004001995200020052010201520202025
  • ZIP3 523: 282.6
  • Iowa: 312.1
  • Cedar Rapids, IA metro: 257.6
  • United States: 391.6

Want a different starting year? Rebase this chart or compare with another ZIP3.

Appreciation by time window

Percent change in the regional index to Q2 2026; gaps are percentage points
WindowZIP3 523IAU.S.Gap vs IAGap vs U.S.
1 year+6.1%+3.2%+3.0%+2.9 pts+3.1 pts
3 years+13.2%+13.1%+12.9%+0.0 pts+0.3 pts
5 years+38.1%+37.4%+41.3%+0.7 pts−3.2 pts
10 years+66.1%+70.6%+93.3%−4.5 pts−27.2 pts
Since Q1 1995+183%+212%+292%−29.5 pts−109.0 pts

If you bought in ZIP3 523 in…

Applying the regional index change from the same quarter of each year to Q2 2026 to an example $300,000 purchase price. Individual homes can differ widely from the regional average.

Bought inIndex change$300,000 then, at the regional rate
Q2 1995+179%$836,006
Q2 2000+133%$697,819
Q2 2005+89.2%$567,638
Q2 2010+82.9%$548,573
Q2 2015+70.3%$510,761
Q2 2020+48.6%$445,811
Q2 2021+38.1%$414,326
Q2 2023+13.2%$339,546
Q2 2025+6.1%$318,293

How ZIP3 523 ranks

Over the past year ZIP3 523 ranks 133rd of 882 3-digit ZIP regions nationally and 1st of 25 in Iowa. Its one-year change is +3.1 pts versus the nation and +2.9 pts versus Iowa. Rank 1 is the strongest appreciation.

WindowNational rankRank in Iowa
1 year133rd of 8821st of 25
3 years573rd of 88216th of 25
5 years653rd of 88215th of 25
10 years779th of 88217th of 25
Since Q1 1995829th of 87923rd of 25

Boom, bust, and recovery in ZIP3 523

ZIP3 523's index peaked in Q1 2009, fell 3.3% to its low in Q2 2011, and regained its peak in Q1 2013, about 4 years after the top. Today it sits +78.6% versus that 2000s peak. How every state and ZIP region fared

Area2000s peakLow pointPeak to lowBack to peakToday vs peak
ZIP3 523Q1 2009Q2 2011-3.3%Q1 2013 (4 yrs)+78.6%
IAQ1 2009Q2 2011-2.5%Q4 2012 (3.8 yrs)+86.4%
MetroQ1 2009Q2 2011-1.9%Q1 2013 (4 yrs)+72.6%
U.S.Q1 2007Q2 2012-19.0%Q4 2016 (9.8 yrs)+89.3%

Appreciation after inflation

Adjusting for consumer price inflation, ZIP3 523's index has changed +27.6% in real terms since Q1 1995. Home prices vs inflation

WindowInflation (CPI-U)ZIP3 523 after inflationIA after inflationMetro after inflationU.S. after inflation
1 year+3.9%+2.1%-0.6%+0.9%-0.8%
3 years+9.8%+3.1%+3.0%+3.4%+2.8%
5 years+24.0%+11.3%+10.8%+8.9%+13.9%
10 years+39.1%+19.4%+22.7%+19.2%+39.0%
Since Q1 1995+121%+27.6%+40.9%+16.3%+76.8%

Estimate appreciation for a home in ZIP3 523

Estimate regional appreciation

Regional estimate

$498,418

Estimated gain
$198,418
Index change
+66.14%
Start index
170.08
End index
282.57

ZIP3 523 (Marion, IA area), Q2 2016 to Q2 2026. Index type: Native 3-Digit ZIP index.

About this estimate. This calculator is an independent tool that applies the publicly available FHFA House Price Index® (FHFA HPI®) to a value you enter. The FHFA HPI® is a 3-digit ZIP (regional) index that measures average price movement across a broad area - it is not specific to any individual property, and the result is not an appraisal, tax assessment, lender valuation, or guaranteed market value. zipappreciation.com is not affiliated with or endorsed by the FHFA. Source: Federal Housing Finance Agency, FHFA HPI® (fhfa.gov).

Nearby 3-digit ZIP regions

3-digit ZIP regionState1 year5 yearsSince Q1 1995
524 · Cedar Rapids, IA areaIA+5.7%+34.8%+151%
522 · Iowa City, IA areaIA+2.3%+33.6%+177%
507 · Waterloo, IA areaIA+1.9%+35.1%+242%
527 · Bettendorf, IA areaIA+3.0%+34.2%+202%
520 · Dubuque, IA areaIA+4.3%+41.4%+216%
528 · Davenport, IA areaIA+4.9%+34.8%+208%

Recent quarterly index values

FHFA HPI® values for ZIP3 523 (original FHFA base, Q1 1995 = 100). Index type: Native 3-Digit ZIP index.
PeriodIndex
Q2 2026282.57
Q1 2026271.38
Q4 2025272.07
Q3 2025268.74
Q2 2025266.33
Q1 2025258.43
Q4 2024259.46
Q3 2024263.08
Q2 2024258.67
Q1 2024254.89
Q4 2023255.63
Q3 2023253.44

Frequently asked questions

How much have home prices risen in ZIP codes starting with 523?
Based on FHFA HPI® data for 3-digit ZIP region 523, the regional index changed +6.1% over the year to Q2 2026, +38.1% over five years, +66.1% over ten years, and +183% since Q1 1995.
Is ZIP3 523 appreciating faster than Iowa and the U.S.?
Over the past year the region's index +6.1% compares with +3.2% for Iowa and +3.0% for the U.S., a gap of +3.1 pts versus the nation. Over five years the gap versus the nation is −3.2 pts.
Which ZIP codes are in 3-digit ZIP region 523?
All ZIP codes that begin with 523. Census 2010 ZIP Code Tabulation Areas in this region run from 52301 to 52362 (52 areas). FHFA publishes one index for the whole 3-digit region, not for each 5-digit ZIP code.
Can I use this to value my home?
No. The FHFA HPI® is a broad regional index of average price movement. It is not an appraisal, tax assessment, or automated valuation of any individual property. Use it as general context alongside local sales and a professional opinion.