Geographic Information System

101 N 54th St

Quincy, IL 62305

217-223-0614

 

Adams County consists of several addressing systems.  The city of Quincy and the adjoining “Tri-Townships” (Ellington, Riverside and Melrose Townships) are a part of one system, The rural County is a separate addressing system and each of the 13 incorporated villages within the County have their own system.

 

Rural Addressing for the County starts with 0 at the South and West County lines.  East/West Roads start at the 0 baseline at the Westernmost part of the County (Mississippi River).  All rural roads (with the exception of platted subdivisions and State Highways) are named according to the grid system, designating their direction and distance from the appropriate baseline.  All “N” road designations indicate roads running East and West followed by the distance from the baseline (indicating the road in North of the baseline).  All “E” road designation indicate roads running North and South followed by their distance from the baseline (indicating they are East of the baseline).  Suffixes following the street number are a part of the number, such as “603rd” with the “rd” meaning “Third”, “2400th” with the “th” meaning “hundredth”, etc. The “Avenue” further designates East/West Roads, North/South Roads are “Street” and Diagonal or curved roads are “Lane.”  Dead end roads are called “Place”. Each 1-mile section is considered a “block” for addressing purposes.  Fifty addresses are allotted on each side of the street.  This allows 1 address for each 105 feet of frontage. Addresses are assigned according to the distance from the baseline.  For example a house located 10 ˝ miles from the baseline will receive a house number of 1050.  Odd numbers are on the left from the baseline and even on the right.  On a North/South road, odd numbers are on the West and even are on the East.  On an East/West road, odd numbers are on the North and even on the South.

 

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