I took a look at single family home sales, on less than an acre, over the past 12 months (9/1/2019 - 8/31/2020) and looked for zip codes with 20+ home sales.  Here's what I found as far as median sales prices...

As you can see, areas east (Penn Laird, McGaheysville) and south (Bridgewater) as well as Harrisonburg itself have higher sales prices -- whereas Dayton, Grottoes, Elkton and Timberville round out the bottom of the list.

Some of the differences in prices between zip codes noted above can easily be understood once realizing that different sized homes are built in different areas. 

I thought that evaluating price per square foot might, thus, be a good way to compare the zip codes -- but I actually came to a different conclusion after I ran the numbers...

As you can see above, some of the localities with the highest median price per square foot (Grottoes = $152/SF, Broadway = $147/SF) have the lowest median sales price.  How could this be!? 

Well, basically, smaller homes tend to have higher a higher price per square foot than larger homes. 

Thus, I added in one more column, above, to show the median size of the homes sold in each zip code.  There, you can see that the reason why some of the lower priced zip codes are higher on the list (above) are a result of the smaller size of the homes in that zip code.

Re-sorting, then, you can also get an interesting view on where larger homes and smaller homes tend to be located on a zip code level...

All this, by the way, is thanks to a few questions from Howie - curious blog reader.  Thanks Howie!  Good questions, and interesting (I think) data/results!