Sioux County property records for 31 addresses on 11th St, Alton, IA · Last verified October 2026
| Properties | 31 |
|---|---|
| Median Sale Price | $150,000 |
| Deeds and Mortgages on File | 27 |
| Median Price per Sqft | $108 |
| Owner Occupied | 45% |
| Median Annual Tax Bill | $1,898 |
| Median Year Built | 1951 |
| Median Ownership Tenure | 7 years |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
109 11th St |
9,120 sqft built 1997 · 1.2 acres | $400,000 Dec 2025 | $7,888 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
206 11th St |
1 ba · 1,688 sqft built 1900 · 0.122 acres | $29,900 Nov 2016 | $796 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
305 11th St |
3 ba · 2,023 sqft built 1950 · 0.157 acres | $289,000 Jul 2025 | $3,358 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
308 11th St |
2 ba · 1,624 sqft built 1900 · 0.226 acres | $91,000 Nov 2018 | $3,192 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
309 11th St |
2 ba · 1,104 sqft built 1950 · 0.167 acres | $155,000 Aug 2023 | $2,330 2025 | Assessor + 4 Documents Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
311 11th St |
1.5 ba · 1,262 sqft built 1900 · 0.191 acres | $62,000 Nov 2009 | $1,830 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
312 11th St |
1.5 ba · 2,416 sqft built 1900 · 0.416 acres | $129,500 Sep 2014 | $4,038 2025 | Assessor + 5 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
404 11th St |
1.5 ba · 1,180 sqft built 1961 · 0.109 acres | $87,500 Oct 2019 | $2,100 2025 | Assessor + 3 Documents Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
405 11th St |
2 ba · 1,084 sqft built 1960 · 0.181 acres | $2,762 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
406 11th St |
1.5 ba · 1,331 sqft built 1884 · 0.262 acres | $145,000 Jun 2025 | $1,898 2025 | Assessor + 1 Document Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
410 11th St |
1.5 ba · 2,310 sqft built 1900 · 0.243 acres | $150,000 Apr 2021 | $3,284 2025 | Assessor + 3 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
504 11th St |
1.5 ba · 975 sqft built 1951 · 0.143 acres | $1,596 2025 | Assessor Updated Oct 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1000 11th St |
1 ba · 1,579 sqft built 2011 · 0.402 acres | $279,000 Oct 2017 | $6,594 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1001 11th St |
2.5 ba · 1,876 sqft built 2014 · 0.384 acres | $32,500 Dec 2013 | $7,540 2025 | Assessor Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1002 11th St |
0.41 acres | $16 2022 | Assessor Updated Oct 2023 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1003 11th St |
5 ba · 2,384 sqft built 2011 · 0.378 acres | $35,000 Jun 2011 | $8,572 2025 | Assessor Updated Sep 2026 | Owner on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1004 11th St |
0.397 acres | $16 2022 | Assessor Updated Oct 2023 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1005 11th St |
3.5 ba · 2,374 sqft built 2013 · 0.344 acres | $35,000 Oct 2012 | $7,484 2025 | Assessor + 1 Document Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1006 11th St |
0.376 acres | Assessor Updated Jun 2023 | — |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1007 11th St |
4 bd · 3.5 ba · 1,668 sqft built 2023 · 0.392 acres | $40,000 Mar 2022 | $8,156 2025 | Assessor + 4 Documents Updated Sep 2026 | 2 Owners on File Owner Occupied |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1008 11th St |
0.367 acres | Assessor Updated Oct 2023 | — |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1010 11th St |
0.38 acres | Assessor Updated Jun 2023 | — |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1012 11th St |
0.402 acres | Assessor Updated Oct 2023 | — |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1014 11th St |
0.41 acres | $16 2022 | Assessor Updated Oct 2023 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1103 11th St |
$22 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1104 11th St |
$85,000 Jan 2026 | $22 2025 | Assessor Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1201 11th St |
$22 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1202 11th St |
$22 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1203 11th St |
$55,000 Jun 2026 | $22 2025 | Assessor + 2 Documents Updated Sep 2026 | 2 Owners on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1205 11th St |
$22 2025 | Assessor Updated Sep 2026 | Owner on File |
| Address | Details | Last Sale | Tax Bill | Records | Owner |
|---|---|---|---|---|---|
1206 11th St |
$22 2025 | Assessor Updated Sep 2026 | Owner on File |