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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 10 - K ( Mark One ) × ANNUAL REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 OR □ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 001-34245 THE YORK WATER COMPANY ( Exact name of registrant as specified in its charter ) " That good York water " SINCE 1816 PENNSYLVANIA ( State or other jurisdiction of incorporation or organization ) 130 EAST MARKET STREET , YORK , PENNSYLVANIA ( Address of principal executive offices ) 23-1242500 ( I.R.S. Employer Identification No. ) Registrant's telephone number , including area code ( 717 ) 845-3601 17401 ( Zip Code ) Securities registered pursuant to Section 12 ( b ) of the Act : None ( Title of Each Class ) Securities registered pursuant to Section 12 ( g ) of the Act : COMMON STOCK , NO PAR VALUE ( Title of Class ) YORW ( Trading Symbol ) The NASDAQ Global Select Market ( Name of Each Exchange on Which Registered ) Indicate by check mark if the registrant is a well - known seasoned issuer , as defined in Rule 405 of the Securities Act . Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15 ( d ) of the Act . □ YES ✓ NO □ YES × NO Indicate by check mark whether the registrant ( 1 ) has filed all reports required to be filed by Section 13 or 15 ( d ) of the Securities Exchange Act of 1934 during the preceding 12 months ( or for such shorter period that the registrant was required to file such reports ) , and ( 2 ) has been subject to such filing requirements for the past 90 days . × YES □ NO Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site , if any , every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S - T ( § 232.405 of this chapter ) during the preceding 12 months ( or for such shorter period that the registrant was required to submit and post such files ) . × YES □ NO Indicate by check mark whether the registrant is a large accelerated filer , an accelerated filer , a non - accelerated filer , a smaller reporting company , or an emerging growth company . See the definitions of “ large accelerated filer , ” “ accelerated filer , ” “ smaller reporting company , " and " emerging growth company ” in Rule 12b - 2 of the Exchange Act . Large accelerated filer □ Small reporting company Accelerated filer □ Non - accelerated filer Emerging growth company □ If an emerging growth company , indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13 ( a ) of the Exchange Act . ☐ Indicate by check mark if the registrant has filed a report on and attestation on its management's assessment of the effectiveness of its internal control over financial reporting under Section 404 ( b ) of the Sarbanes - Oxley Act ( 15 U.S.C. 7262 ( b ) ) by the registered public accounting firm that prepared or issued its audit report . Indicate by check mark whether the registrant is a shell company ( as defined in Rule 12b - 2 of the Exchange Act ) . The aggregate market value of the Common Stock , no par value , held by nonaffiliates of the registrant on June 30 , 2020 was $ 625,110,599 . YES □ NO