What ZIP codes serve Alton, IL?

Alton, IL is served by the following ZIP codes: 62002, 62010, 62018, 62024, 62035.

What is the average temperature in Alton?

In Alton, IL, the average annual high temperature is 65°F and the average low is 46°F, with 41.9 inches of annual precipitation.

How do I verify a Alton address?

Use MailColt's free address verification tool to instantly check any Alton, IL address for deliverability. Enter the street address, city, state, and ZIP code to get a confidence score and standardized formatting.

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Alton is the #169 city in Illinois by population, with a population of 69,576 across 5 ZIP codes. Average temperatures range from 46.4°F to 65.0°F, with 41.9" of annual precipitation. The local economy is anchored by Retail, with 206 establishments.

ZIP Codes

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Income by ZIP Code in Alton, IL

ZIP Code	Population	Median Income	Median Home Value	Median Rent
62002	30,036	$57,851	$114,300	$941
62010	11,154	$72,717	$170,000	$896
62018	3,006	$41,750	$78,400	$1,018
62024	9,465	$60,775	$112,500	$851
62035	15,915	$91,696	$179,900	$1,158

Climate in Alton, IL

Average monthly temperatures and precipitation.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg High	39°	44°	54°	66°	75°	84°	87°	86°	80°	68°	54°	44°
Avg Low	22°	25°	35°	45°	56°	66°	69°	67°	60°	48°	36°	27°
Precip	2.5"	2.5"	3.5"	4.9"	5.5"	3.4"	4.0"	3.3"	3.4"	2.9"	3.4"	2.6"
Snow	-	-	-	-	-	-	-	-	-	-	-	-

Top Industries in Alton, IL

Industry	Establishments
Retail trade	206
Health care and social assistance	196
Other services (except public administration)	190
Accommodation and food services	174
Finance and insurance	116
Construction	114
Professional, scientific, and technical services	94
Real estate and rental and leasing	63
Administrative and support and waste management and remediation services	51
Transportation and warehousing	43

Historic Landmarks in Alton

Alton has 17 properties listed on the National Register of Historic Places, including:

Alton Chapter House — 509 Beacon St.
Alton Gas & Electric Power House — 700 W. Broadway
Alton Military Prison Site — Address Restricted
Alton National Cemetery — 600 Pearl St.
Christian Hill Historic District — Roughly bounded by Broadway, Belle, 7th, Cliff, Bluff, and State Sts.
Guertler House — 101 Blair St.
Haskell Playhouse — Henry St. in Haskell Park
Hotel Stratford — 229 Market St.
Middletown Historic District — Roughly bounded by Broadway, Market, Alton, Franklin, Common, Liberty, Humboldt, and Plum Sts.
Middletown Historic District (Boundary Increase II) — Roughly bounded by Front, State, Fourth, Market, Broadway, Third, Alby, Langdon, and Ridge Sts.

All 5 ZIP Codes Serving Alton, IL

Other Cities in Illinois

Chicago Aurora Joliet Naperville Woodridge

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