There were 1,229 total businesses in the area, with 280 professional, scientific and technical services businesses (22.8%) accounting for the largest proportion of these businesses. 725 businesses (59%) had fewer than five employees, and 16 (1.3%) had 250 or more.
Median-sized businesses in four zip codes have between 20 and 49 employees, more than any other zip code.
The following table shows the median business size in the top ZIP codes in Maryland.
Median business size in the top Maryland ZIP Codes (2016)
| ZIP code | Total Employees |
|---|---|
| 20791 | 20-49 |
| 20899 | 20-49 |
| 21130 | 20-49 |
| 21528 | 20-49 |
| 21020 | 10-19 |
| 21031 | 10-19 |
| 21077 | 10-19 |
| 21235 | 10-19 |
| 21252 | 10-19 |
| 21922 | 10-19 |
| 20601 | 5-9 |
| 20602 | 5-9 |
| 20603 | 5-9 |
| 20608 | 5-9 |
| 20617 | 5-9 |
| 20619 | 5-9 |
| 20622 | 5-9 |
| 20650 | 5-9 |
| 20653 | 5-9 |
| 20677 | 5-9 |
| 20678 | 5-9 |
| 20686 | 5-9 |
| 20695 | 5-9 |
| 20701 | 5-9 |
| 20705 | 5-9 |
| 20706 | 5-9 |
| 20707 | 5-9 |
| 20716 | 5-9 |
| 20735 | 5-9 |
| 20742 | 5-9 |
| 20743 | 5-9 |
| 20745 | 5-9 |
| 20747 | 5-9 |
| 20751 | 5-9 |
| 20755 | 5-9 |
| 20763 | 5-9 |
| 20770 | 5-9 |
| 20771 | 5-9 |
| 20773 | 5-9 |
| 20774 | 5-9 |
| 20781 | 5-9 |
| 20785 | 5-9 |
| 20794 | 5-9 |
| 20859 | 5-9 |
| 20877 | 5-9 |
| 20879 | 5-9 |
| 20883 | 5-9 |
| 20889 | 5-9 |
| 20892 | 5-9 |
| 20894 | 5-9 |
| 21001 | 5-9 |
| 21005 | 5-9 |
| 21010 | 5-9 |
| 21017 | 5-9 |
| 21027 | 5-9 |
| 21030 | 5-9 |
| 21040 | 5-9 |
| 21045 | 5-9 |
| 21046 | 5-9 |
| 21054 | 5-9 |
| 21061 | 5-9 |
| 21075 | 5-9 |
| 21076 | 5-9 |
| 21090 | 5-9 |
| 21157 | 5-9 |
| 21162 | 5-9 |
| 21201 | 5-9 |
| 21202 | 5-9 |
| 21203 | 5-9 |
| 21220 | 5-9 |
| 21224 | 5-9 |
| 21226 | 5-9 |
| 21227 | 5-9 |
| 21230 | 5-9 |
| 21236 | 5-9 |
| 21237 | 5-9 |
| 21240 | 5-9 |
| 21244 | 5-9 |
| 21250 | 5-9 |
| 21285 | 5-9 |
| 21286 | 5-9 |
| 21287 | 5-9 |
| 21401 | 5-9 |
| 21402 | 5-9 |
| 21501 | 5-9 |
| 21502 | 5-9 |
| 21503 | 5-9 |
| 21520 | 5-9 |
| 21523 | 5-9 |
| 21538 | 5-9 |
| 21541 | 5-9 |
| 21543 | 5-9 |
| 21601 | 5-9 |
| 21613 | 5-9 |
| 21644 | 5-9 |
| 21658 | 5-9 |
| 21661 | 5-9 |
| 21701 | 5-9 |
| 21703 | 5-9 |
| 21704 | 5-9 |
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