20 Congress Ave
Sioux City, IA 51104
4 bd 2 ba 2,130 sqft Built 1924 Lot 7,440 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 | $212,100 | $34,000 | $246,100 | $4,728 |
| 2022 | $151,900 | $23,200 | $175,100 | $2,266 |
| 2021 | $100,700 | $23,200 | $123,900 | $2,266 |
| 2020 | $92,800 | $28,900 | $121,700 | $2,470 |
| 2019 | $98,820 | $31,212 | $130,032 | $2,440 |
| 2018 | $87,700 | $28,900 | $116,600 | $2,406 |
| 2017 | $87,700 | $28,900 | $116,600 | $2,144 |
| 2016 | $76,500 | $26,500 | $103,000 | $2,114 |
| 2015 | $76,500 | $26,500 | $103,000 | $2,000 |
| 2014 | $67,800 | $28,800 | $96,600 | $2,004 |
| 2013 | $67,800 | $28,800 | $96,600 | $1,922 |
| 2012 | $67,800 | $28,800 | $96,600 | $1,898 |
| 2011 | $67,800 | $28,800 | $96,600 | $1,820 |
| 2009 | $76,700 | $17,100 | $93,800 | $1,956 |
| 2008 | $76,700 | $17,100 | $93,800 | $1,692 |
| 2007 | $73,000 | $17,500 | $90,500 | $1,670 |
Property facts
Year built
1924
Property type
single_family
Stories
1
Beds
4
Baths
2
Living area
2,130 sqft
Lot size
7,440 sqft
ZIP code
51104
City
Sioux City
Street
Congress Ave
Coordinates
42.52273, -96.41283
Comparable properties nearby
Frequently asked questions
When did 20 Congress Ave last sell?
No public-record sale is on file for 20 Congress Ave.
What is the current tax assessment for 20 Congress Ave?
The most recent total assessment for 20 Congress Ave (year 2025) is $246,100 with $4,728 in property tax.
When was 20 Congress Ave built?
20 Congress Ave was built in 1924.
How does 20 Congress Ave compare to others on Congress Ave?
We track 6 other properties on Congress Ave. Browse the list under "Other properties on Congress Ave" to compare beds, baths, and sale history.
What are the property facts for 20 Congress Ave?
20 Congress Ave is a 4 bed, 2 bath, 2,130 sqft, 7,440 sqft lot single_family.
Is 20 Congress Ave a flip candidate?
No — 20 Congress Ave does not appear in our flips dataset.
Is 20 Congress Ave a tax-appeal candidate?
No — 20 Congress Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
+0.5%
Implied 1-yr
+2.2%
2026 Q3
$304.5K
2026 Q4
$306K
ZIP 51104 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Congress Ave