Chicago, IL-IN business phone guide

The Chicago, IL-IN area

The Chicago-Naperville-Elgin, IL-IN metro area covers 13 counties in Illinois and Indiana and had 9.4 million residents in July 2024, down 0.5% since April 2020. The U.S. population grew 2.6% over the same period. Cook County, IL is the most populous, with 5.2 million people. By population it ranks 3rd of the 925 metro and micropolitan areas and 3rd by business establishments.

Businesses in Chicago, IL-IN

County Business Patterns counted 248,519 establishments in the area in 2023, employing 4,285,971 people in mid-March with $331.9 billion in annual payroll. That is an average of 17.2 employees per establishment. 58.8% of establishments with employees had fewer than five people. By establishment count, the largest sectors are professional, scientific, and technical services (32,828), health care and social assistance (29,768), and retail trade (25,308).

Business density and team size in Chicago, IL-IN

Chicago, IL-IN has 26.4 business establishments per 1,000 residents, 7.4% above the U.S. figure of 24.6. Establishments average 17.2 employees against 16.7 nationally, and payroll per employee is $77,437 (13.3% above the U.S. $68,342). 58.8% of establishments with employees have fewer than five people (U.S.: 55.5%), while 5.9% have 50 or more. Most establishments are far smaller than the average suggests, so it pays to price a phone plan at the headcount you actually have rather than the average.

Small-business industries in Chicago, IL-IN

Of the 141 industries these guides cover, 141 have a published Census count in Chicago, IL-IN. The largest are limited-service restaurants (8,179), full-service restaurants (7,371), and law offices (5,865). Relative to population, general freight trucking companies (local) are the most over-represented: 42.9 per 100,000 residents against 13.6 nationally.

Phone numbers in the Chicago, IL-IN area

The area's named cities and towns have 4,032 NANPA-assigned exchanges across 18 area codes; 630 has the most (19%). A local number in the code your customers know is the simplest signal that you are nearby; Callata's plan includes up to 3.

Local numbers by city

Pages for 158 cities and towns in the area list their area codes, prefixes and carriers.

Phone costs for a typical Chicago, IL-IN business

Per-seat phone plans multiply by headcount. For the rounded average establishment size in Chicago, IL-IN, 17 users on RingCentral RingEX Core come to $510.00 a month and on Ooma Office Pro $424.15, at month-to-month list prices checked September 28, 2026. On Callata the same 17 people cost $339.00 a month, less than either per-seat plan.

Callata in Chicago, IL-IN

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

If you already have a number in Chicago, IL-IN, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.