Company: MSEX
Filing Date: 2025-07-29
Form Type: 424B5
Source: 0001104659-25-071727
Chunk: 5

Company: MIDDLESEX WATER CO
Filing Date: 2025-07-29
Form: 424B5
Chunk 5
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 state, local and foreign income tax purposes. Such dividend 
 income will generally give rise to a tax liability even though no cash was actually paid   
 to you. This may create a liability for payment of income tax without providing you with   
 immediate cash to pay this tax liability when it becomes due.                              |

| · | No                                                                                               
 discount will be available for shares of Middlesex Common Stock acquired in the open market      
 or in privately negotiated transactions. From time to time, no discount may be available         
 for any or all of initial purchases, optional purchase or reinvestment of dividends. For         
 example, a discount for reinvestment of dividends will not insure the availability of a discount 
 for optional cash purchases or initial investments. While a discount from market prices may      
 be established for a particular period of time for shares of Middlesex Common Stock purchased    
 directly from us, a discount for any one period of time will not insure the availability         
 of the same or any other discount for future periods. We may, without giving you prior notice,   
 change or eliminate the discount for any or all of the investment features of the Plan.          |

| · | You                                                                                               
 bear the risk of loss from market price changes for shares of Middlesex Common Stock purchased    
 under the Plan. Neither we nor the Plan Agent can give you any assurance that shares of Middlesex 
 Common Stock purchased under the Plan will, at any particular time, be worth more or less         
 than the amount you paid for them.                                                                |

<div align='center'>S-2

MIDDLESEX WATER COMPANY</div>

Middlesex Water Company was
incorporated as a water utility company in 1897 and owns and operates regulated water utility and wastewater systems primarily in New
Jersey and Delaware. We also operate water and wastewater systems under contract on behalf of municipal and private clients primarily
in New Jersey and Delaware. Across our regulated utility systems, we serve approximately 128,000 customers. We operate water and wastewater
systems under unregulated contracts for governmental entities and private entities.

The terms “the Company,”
“we,” “our,” and “us” refer to Middlesex Water Company and its subsidiaries, including Tidewater
Utilities, Inc. (“Tidewater”) and Tidewater’s wholly-owned subsidiaries, Southern Shores Water Company, LLC (“Southern
Shores”) and White Marsh Environmental Systems, Inc. (“White Marsh”), Pinelands Water Company (“Pinelands
Water”) and Pinelands Wastewater Company (“Pinelands