Addresses on Union St in Alton Illinois
- 1000 Union St
- 1000 Union St
- 1001 Union St
- 1002 Union St
- 1006 Union St
- 1007 Union St
- 1009 Union St
- 1010 Union St
- 1012 Union St
- 1016 Union St
- 1020 Union St
- 1021 Union St
- 1028 Union St
- 1032 Union St
- 1032 Union St
- 1036 Union St
- 1037 Union St
- 1039 Union St
- 1040 Union St
- 1100 Union St
- 1100 Union St
- 1102 Union St
- 1103 Union St
- 1105 Union St
- 1110 Union St
- 1111 Union St
- 1123 Union St
- 1127 Union St
- 1200 Union St
- 1200 Union St
- 1200 Union St
- 1200 Union St
- 1200 Union St
- 1205 Union St
- 1209 Union St
- 1215 Union St
- 1220 Union St
- 1222 Union St
- 1400 Union St
- 618 Union St
- 620 Union St
- 701 Union St
- 702 Union St
- 711 Union St
- 715 Union St
- 716 Union St
- 800 Union St
- 800 Union St
- 800 Union St
- 809 Union St
- 810 Union St
- 811 Union St
- 817 Union St
- 818 Union St
- 824 Union St
- 829 Union St
- 834 Union St
- 900 Union St
- 900 Union St
- 900 Union St
- 900 Union St
- 900 Union St
- 901 Union St
- 918 Union St
- 919 Union St
- 921 Union St
- 931 Union St
- 937 Union St
- 942 Union St
- 945 Union St
- 946 Union St
- 950 Union St
- 958 Union St
- 960 Union St