Adams County, IL Duplexes for sale

Updated: Aug 5

Two-Unit Duplex with Garage

1120-1122 WASHINGTON Street, Quincy, IL 62301

$138,000

0.21 AC lot

Two‑unit duplex with two‑bedroom, one‑bath layouts
24x27 garage included
R2 zoning
0.21 acres
Forced‑air heating with natural gas and central air

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Updated: Jul 28

Mixed-Use Property with Storefront

123 N 6TH Street, Quincy, IL 62301

$479,900

0.04 AC lot

Two residential apartments, each with 2 bedrooms and 2 full bathrooms
Residential interiors comprehensively rebuilt in 2020
Unfinished commercial storefront provides a customizable business space
Open‑air deck added in 2018
Located on Quincy’s 6th Street Promenade near restaurants, breweries, shopping, and entertainment

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Renovated Two-Unit Duplex

609 S 14TH Street, Quincy, IL 62301

$149,000

2 units Multi-tenant

100% occupied

Separate one- and two-bedroom residences are leased month to month, with tenants covering gas and electric.

1 x 1BR/1BA 1 x 2BR/1BA

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Two-Unit Duplex

613 N 8th Street, Quincy, IL 62301

$80,000

2 units 1,690 sqft Built 1920

The residence has one apartment on the ground level and a second upstairs, each with two bedrooms and one full bathroom.

2 x 2BR/1BA

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Two-Unit Brick Duplex

613 N 8TH Street, Quincy, IL 62301

$80,000

2 units Built 1920 0.08 acres

Two residential units are arranged on separate floors, with two bedrooms and one full bathroom in each.

2 x 2BR/1BA

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Brick Duplex on Corner Lot

337 CHESTNUT Street, Quincy, IL 62301

$35,000

2 units Built 1871 0.26 acres

Two-unit brick property with fenced grounds and on-street parking, offered in as-is condition.

2 x 2BR/1BA

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Remodeled Duplex

1629-1631 VERMONT Street, Quincy, IL 62301

$255,000

2 units 4,400 sqft Built 1892

A fenced common yard and updated outdoor improvements serve both residences.

Shared fenced yard Brick sidewalk Front porch

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Brick Duplex

623 S 7TH Street, Quincy, IL 62301

$69,900

2 units 1,818 sqft 2-story Built 1880 brick

Two separate units offer a residential income configuration in a two-story building.

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Two-Unit Duplex with Detached Garage

630 630 1/2 S 14th St, Quincy, IL 62301

$125,000

2 units Built 1887

The two residences have independent gas and electric service, with one currently occupied and the other vacant.

Utilities to site Covered front porch Enclosed rear porch Covered patio Detached garage Main level laundry 2nd level deck

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Single-Level Duplex

621 Jefferson Street, Quincy, IL 62301

$79,900

Two residential units each provide an open kitchen and living area, with a garage that may offer separate rental use.

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Multi Family

525-527 COLLEGE Avenue, Quincy, IL 62301

Contact for pricing

1,109 sqft

Duplexes · 1,109 SF

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Adams County, IL Duplexes Market Trends and Statistics

Explore 11 duplexes for sale in Adams County, IL, showcased through 11 active listings on our real estate platform. These investment opportunities span a total of 4,617 square feet of properties for sale, with an estimated market value of $1,491,700.

Sale prices for two-family homes in Adams County, IL start at $35,000, averaging $149,170, and reaching up to $479,900 — offering options for a variety of budgets and business needs. Daily updated analytics ensure you stay ahead with the latest data and market trends.

Featured Adams County Real Estate Agencies

Realmo connects you with licensed Adams County CRE brokers providing property specifications, local market pricing, and commercial transaction underwriting support.

Swick Realty

812 Hampshire D Quincy, IL 62301

Phone: (217) 653-9910

www.SwickRealty.com

Happel Inc., REALTORS

4439 Broadway St Quincy, IL 62305

Phone: (217) 224-8383