603 Helen St
Sioux City, IA 51106
4 bd 2 ba 1,601 sqft Built 1925 Lot 7,452 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $178,900 | $27,500 | $206,400 | $3,406 |
| 2022 | $110,800 | $21,100 | $131,900 | $2,456 |
| 2021 | $103,500 | $21,100 | $124,600 | $1,982 |
| 2020 | $79,600 | $19,300 | $98,900 | $1,648 |
| 2019 | $61,344 | $19,548 | $80,892 | $1,590 |
| 2018 | $54,300 | $16,100 | $70,400 | $1,570 |
| 2017 | $54,300 | $16,100 | $70,400 | $1,452 |
| 2016 | $48,800 | $15,200 | $64,000 | $1,434 |
| 2015 | $48,800 | $15,200 | $64,000 | $1,506 |
| 2014 | $44,100 | $22,100 | $66,200 | $1,514 |
| 2013 | $44,100 | $22,100 | $66,200 | $1,456 |
| 2012 | $44,100 | $22,100 | $66,200 | $1,408 |
| 2011 | $44,100 | $22,100 | $66,200 | $1,256 |
| 2009 | $49,400 | $11,000 | $60,400 | $1,258 |
| 2008 | $49,400 | $11,000 | $60,400 | $1,190 |
| 2007 | $46,900 | $11,300 | $58,200 | $1,176 |
Property facts
Year built
1925
Property type
single_family
Stories
1
Beds
4
Baths
2
Living area
1,601 sqft
Lot size
7,452 sqft
ZIP code
51106
City
Sioux City
Street
Helen St
Coordinates
42.48566, -96.36996
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 603 Helen St last sell?
No public-record sale is on file for 603 Helen St.
What is the current tax assessment for 603 Helen St?
The most recent total assessment for 603 Helen St (year 2025) is $206,400 with $3,406 in property tax.
When was 603 Helen St built?
603 Helen St was built in 1925.
How does 603 Helen St compare to others on Helen St?
We track 8 other properties on Helen St. Browse the list under "Other properties on Helen St" to compare beds, baths, and sale history.
What are the property facts for 603 Helen St?
603 Helen St is a 4 bed, 2 bath, 1,601 sqft, 7,452 sqft lot single_family.
Is 603 Helen St a flip candidate?
No — 603 Helen St does not appear in our flips dataset.
Is 603 Helen St a tax-appeal candidate?
No — 603 Helen St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-1.4%
Implied 1-yr
-5.5%
2026 Q3
$237.9K
2026 Q4
$234.3K
ZIP 51106 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Helen St