Mark Greene is our Maps & Assessing officer. Mark is assisted by our assessor’s agent, Bob Konczol, and by Curt Murley for GIS matters.
Assessing Data
Information about Long Island property taxes is available HERE.
We provide our GIS data in the form of PDF PDF files, Google Earth Pro maps (KMZ files) and ESRI ArcGIS webmap files.
PDF Maps
The following maps can be viewed with any PDF viewer. They are formatted for super B size paper (13″ x 19″) and can be printed by any local print service company. Printed copies are available for viewing at Town Hall. Note that these maps identify parcels by lot numbers and you will need a copy of the current tax database (see above) to determine parcel owner names and tax information.
2018-2019 Parcel Map 1 – West End Section
2018-2019 Parcel Map 2 West Central Section
2018-2019 Parcel Map 3 – East Central Section
2018-2019 Parcel Map 4 – East End Section
Official Long Island Zoning Map – this map is being updated
Google Earth Maps
The maps in this section are Google Earth maps. To view them you must have the Google Earth Pro program installed on your computer or device. Google Earth Pro is free and can be downloaded and installed on computers from the following link: Google Earth Download . Google Earth Pro is also available for both Apple and Android smartphones and tablets.
When you click on the following map links a file will be download to you computer or device. The file can then be opened with Google Earth Pro.
Long Island Two-foot Contour Map
This contour map was created by FEMA and used to make our current floodplain map.
Current FEMA LI Floodplain Map with Elevation Contours
Our current FEMA flodplain map was adopted by the town at our 2023 town meeting. We have added 2-foot elevation contours over this map up to the maximum flood predicted flood level.
GIS Maps
These maps were created with our GIS software (ArcGIS) and can be viewed with any modern browser on a computer, tablet or smartphone. Supported browsers are:
- Google Chrome version 122 and later
- Microsoft Edge version 122 and later
- Mozilla Firefox version 125 and later
- Mozilla Firefox version 115 (ESR)
- Safari version 16 and later
Current Parcel Map with Zone Data
This is the current 2024-2025 town parcel map created in 2024-07. If you click on a parcel it shows the lot# and building zone in which the lot lies.
Current Parcel Map with Zone and Tax Data
The tax valuation shown is from the most recent valuation. Lot owner data is current as of 2024-07-11.
Long Island Shoreland Zone Boundaries – this map is being updated
General Note Regarding Parcel Maps
Refer to the tax database spreadsheets above for the current parcel owner and tax information. These spreadsheets are updated throughout the tax year.
The data provided in the tax map are for planning purposes only. Although considerable time and grant-money has gone into making them as accurate as possible, some inaccuracies undoubtedly remain. They were created from the paper maps tax maps that the town inherited from the City of Portland after secession. Those paper maps were imperfect to begin with and degraded further over time. The town believes that these data are accurate enough for planning and taxation; however, like any tax map, they represent only an estimate of the location of lot boundaries and the size and shape of lots. Only a professional survey can determine the exact boundaries and size of your property.
That said, if you believe that the maps provided here contain errors that would render town planning and taxation work inaccurate, the town may, after consideration, adjust the data to produce are more accurate depiction of your lot characteristics. If you wish to submit changes, please consult with our GIS assistant. Call Town Hall to set up an appointment.
This page was updated 2024-10-16