Best ZIP Codes for Cash Flow in Harrisburg-Carlisle, PA (2026)

Ranked by cap rate — the annual return on the purchase price before financing. ZIPs that also clear the 1% rule are marked.

# ZIP City Home value Rent Cap rate 5-yr growth
1 17104 Harrisburg, PA $135,379 $1,193 6.88% 9.6%
2 17103 Harrisburg, PA $149,455 $1,206 6.30% 10.0%
3 17098 Williamstown, PA $134,303 $1,026 5.96% 5.4%
4 17048 Lykens, PA $166,900 $1,170 5.47% 6.8%
5 17102 Harrisburg, PA $203,087 $1,313 5.04% 5.5%
6 17006 Blain, PA $202,184 $1,251 4.83% 1.9%
7 17110 Harrisburg, PA $269,946 $1,665 4.81% 7.0%
8 17034 Highspire, PA $195,923 $1,179 4.69% 9.0%
9 17101 Harrisburg, PA $215,627 $1,292 4.67% 2.6%
10 17111 Harrisburg, PA $297,170 $1,714 4.50% 5.9%
11 17113 Harrisburg, PA $189,588 $1,090 4.48% 7.8%
12 17025 Enola, PA $303,513 $1,713 4.40% 5.9%
13 17036 Hummelstown, PA $387,386 $1,999 4.03% 5.7%
14 17080 Pillow, PA $181,068 $936 4.03% 9.9%
15 17057 Middletown, PA $265,664 $1,351 3.97% 7.3%
16 17043 Lemoyne, PA $272,579 $1,360 3.89% 6.0%
17 17093 Summerdale, PA $256,692 $1,269 3.86% 7.6%
18 17109 Harrisburg, PA $267,945 $1,325 3.86% 6.5%
19 17055 Mechanicsburg, PA $364,145 $1,726 3.70% 6.2%
20 17011 Camp Hill, PA $332,307 $1,573 3.69% 6.4%
21 17050 Mechanicsburg, PA $452,194 $2,134 3.68% 5.4%
22 17013 Carlisle, PA $292,276 $1,355 3.62% 6.2%
23 17021 East Waterford, PA $219,069 $1,008 3.59%
24 17030 Gratz, PA $208,984 $936 3.49% 5.7%
25 17112 Harrisburg, PA $362,840 $1,592 3.42% 5.3%

Ranked from Repit’s own ZIP-level data — Zillow home values and rents, HUD fair-market rents where Zillow has no coverage, and U.S. Census vacancy. Cap rate is gross: annual rent over purchase price, before financing and expenses. Every ZIP above links to its full free page. How we calculate this →