Gallia County grew from its beginnings as a settlement at Gallipolis in 1790 by immigrants from France. To understand the growth of the county, we turn to the 1860 US Census. This census listed the post office at the top of the page as well as township and county. Each page had lines for 23 individuals. If we count the number of pages for each post office and multiply by 23 we arrive at a rough guess at the size of these population centers.

We need to remember: not all people were enumerated (there are always some families missed), there were some blank lines (this has been taken into account), some pages may have contained entries for people for more than one post office, and there were pages that did not list a post office. For these reasons, the figures are approximations but they still give us a picture of the settlement of the county in 1860. In addition, residents of Gallia County who lived near a county line may have gotten their mail from a post office in a neighboring county. For this reason, Huntington Township listed two post offices that were in Vinton County: Vinton PO and Keystone PO. Many of the post offices were not in towns, and some covered more land area than others.

1860 Population by Township and Post Office
(Figures represent the number of people served by each post office)

       
             Addison Township        Huntington Township
Addison PO
 492
Ewington PO
 618
Gallipolis PO
 251
Vinton PO    
 647
Cheshire PO
 191
 Keystone PO
  38
    Pine Grove PO
  38
Thurman       
 116
(blank) PO  
  79
(blank)        
 270
Total
 1052
Total
  1679
   
             Cheshire Township          Morgan Township
Kyger PO    
 988
     Pine Grove PO
 312
Cheshire PO
 544
Vinton PO  
 342
  Silver Run PO
  39
Anselm PO
 626
 Addison PO 
  16
Kyger        
  40
  (blank) PO    
  38
(blank)       
  40
Total
  1625
Total
  1360
   
             Clay Township          Ohio Township
Gallipolis PO
1204
           South New Castle
 893
Total
  1204
Total
    893
     
             Gallipolis Township          Perry Township
Gallipolis PO    
3300
Patriot PO   
 414
    South New Castle
  80
         Gallia Furnace PO
 112
Total
  3380
Wales PO    
 309
   
 Waterloo PO
 758
             Green Township  
Total
  1593
  Gallipolis PO
 475    
Rodney PO
 857        Raccoon Township
Total
  1332
Harris PO    
 426
   
Thurman PO
 915
             Greenfield Township  
     Rio Grande PO
 305
    Gallia Furnace
1023
    Pine Grove PO
  39
Total
  1023
(blank) PO  
  55
   
Total
  1740
             Guyan Township    
    Mercerville PO
 686        Springfield Township
 Gallipolis PO
 160
Gallipolis PO 
 117
Total
    846
  Pine Grove PO
1100
   
Rodney PO   
 301
             Harrison Township  
(blank) PO    
  79
Gallipolis PO
 749
Total
  1587
Northup PO 
 220  
Bull Skin PO
  74        Walnut Township  
         Little Bull Skin PO
 149
        Walnut Ridge PO
 636
       Walnut Ridge PO
  34
Smith's PO 
 480
      Big Bull Skin PO
  38
Total
  1116
   Mercerville PO
 111  
Total
   1275