Sourced county profiles
Rankings
Best Maryland Counties for Solar Potential
A sourced county-centroid solar resource ranking from NASA POWER climatology.
Ranking boundary
Rankings Are Discovery Leads
A high ranking means a county is worth researching first. It is not legal advice, a recommendation to buy land, or proof that any parcel will qualify for a specific use.
Solar potential uses county-centroid irradiance as a broad planning proxy.
Source confidence
Ranking Confidence Strip
A quick trust check for the top-ranked counties: verified profiles, major source coverage, citation depth, and the number of source inputs behind this ranking.
Major sourced layers present
Top 10 county citation URLs
Source groups used by this ranking
Anne Arundel County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#2Calvert CountyPartially sourced5Calvert County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#3Caroline CountyPartially sourced5Caroline County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#4Charles CountyPartially sourced5Charles County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#5Dorchester CountyPartially sourced5Dorchester County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#6Prince George's CountyPartially sourced5Prince George's County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#7Queen Anne's CountyPartially sourced5Queen Anne's County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#8Somerset CountyPartially sourced5Somerset County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#9St. Mary's CountyPartially sourced5St. Mary's County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#10Talbot CountyPartially sourced5Talbot County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#11Wicomico CountyPartially sourced5Wicomico County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#12Worcester CountyPartially sourced5Worcester County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#13Baltimore CountyPartially sourced4Baltimore County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#14Baltimore cityPartially sourced4Baltimore city now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#15Carroll CountyPartially sourced4Carroll County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#16Cecil CountyPartially sourced4Cecil County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#17Harford CountyPartially sourced4Harford County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#18Howard CountyPartially sourced4Howard County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#19Kent CountyPartially sourced4Kent County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#20Allegany CountyPartially sourced3Allegany County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#21Frederick CountyPartially sourced3Frederick County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#22Montgomery CountyPartially sourced3Montgomery County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#23Washington CountyPartially sourced3Washington County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
#24Garrett CountyPartially sourced2Garrett County now has a first-pass Maryland statewide source anchor for routing. Tiny home, RV, off-grid, container-home, ADU, water, septic, access, floodplain, wetland, Critical Area, municipal jurisdiction, and building-permit feasibility should still be confirmed through local staff, state environmental review, subdivision rules, private covenants, and parcel-level research before purchase.
Research context
How To Read This Ranking
Ranking Source Trail
Solar potential rankings use county-centroid solar climatology as a broad planning proxy.