UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. )

ACADIA HEALTHCARE CO INC
(Name of Issuer)

COMMON STOCK
(Title of Class of Securities)

00404A109
(CUSIP NUMBER)

July 31, 2022
(Date of Event which Requires Filing of Statement)

Check the appropriate box to designate the Rule pursuant to which this
Schedule is filed:
[x]  Rule 13d - 1(b)
     Rule 13d - 1(c)
     Rule 13d - 1(d)

1. Name of Reporting Person
   T. Rowe Price Investment Management, Inc.
   85-4328500

2. Check the Appropriate Box if a Member of a Group
   NOT APPLICABLE

3. SEC Use Only

4. Citizenship or Place of Organization
   Maryland

Number of Shares Beneficially Owned by Each Reporting Person With

5. Sole Voting Power*         4,113,300

6. Shared Voting Power*       0

7. Sole Dispositive Power*    10,241,972

8. Shared Dispositive Power   0

9. Aggregate Amount Beneficially Owned by Each Reporting Person
   10,241,972

10. Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares
	NOT APPLICABLE

11. Percent of Class Represented by Amount in Row 9
	11.2%

12. Type of Reporting Person
	IA

*Any shares reported in Items 5 and 6 are also reported in Item 7.

1. Name of Reporting Person
   T. ROWE PRICE MID-CAP GROWTH FUND, INC.
   52-1784828

2. Check the Appropriate Box if a Member of a Group
   NOT APPLICABLE

3. SEC Use Only

4. Citizenship or Place of Organization
   Maryland

Number of Shares Beneficially Owned by Each Reporting Person With

5. Sole Voting Power*         5,084,200

6. Shared Voting Power*       0

7. Sole Dispositive Power*    0

8. Shared Dispositive Power   0

9. Aggregate Amount Beneficially Owned by Each Reporting Person
   5,084,200

10. Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares
	NOT APPLICABLE

11. Percent of Class Represented by Amount in Row 9
	5.5%

12. Type of Reporting Person
   	IV

*Any shares reported in Items 5 and 6 are also reported in Item 7.

Item 1(a) Name of Issuer:
ACADIA HEALTHCARE CO INC

Item 1(b) Address of Issuer's Principal Executive Offices:
6100 TOWER CIRCLE, SUITE 1000, FRANKLIN, TENNESSEE 37067

Item 2(a) Name of Person(s) Filing:
(1) T. Rowe Price Investment Management, Inc. (Price Investment Management)
(2) T. ROWE PRICE MID-CAP GROWTH FUND, INC.

X   Attached as Exhibit A is a copy of an agreement between the Persons Filing
    (as specified hereinabove) that this Schedule 13G is being filed on behalf
     of each of them.


Item 2(b) Address of Principal Business Office:
101 E. Pratt Street, Baltimore, MD 21201

Item 2(c) Citizenship or Place of Organization:
(1) Maryland
(2) Maryland

Item 2(d) Title of Class of Securities: COMMON STOCK

Item 2(e) Cusip Number: 00404A109

Item 3: The person filing this Schedule 13G is an:
X   Investment Adviser registered under Section 203 of the Investment
    Advisers Act of 1940
X   Investment Company registered under Section 8 of the Investment
    Company Act of 1940

Item 4: Reference is made to Items 5-11 on the preceding pages of this
        Schedule 13G.

Item 5: Ownership of Five Percent or Less of a Class
	Not Applicable

Item 6: Ownership of More than Five Percent on Behalf of Another Person

(1)     Price Investment Management does not serve as custodian
        of the assets of any of its clients; accordingly, in each
        instance only the client or the client's custodian or
        trustee bank has the right to receive dividends paid with
        respect to, and proceeds from the sale of, such securities.

        The ultimate power to direct the receipt of dividends paid with
        respect to, and the proceeds from the sale of, such securities, is
        vested in the individual and institutional clients which
        Price Investment Management serves as investment adviser.
        Any and all discretionary authority which has been delegated to
        Price Investment Management may be revoked
        in whole or in part at any time.

        Except as may be indicated if this is a joint filing with one of the
        registered investment companies sponsored by
        Price Investment Management which it also serves as
        investment adviser ("T. Rowe Price Funds"), not more
        than 5% of the class of such securities is owned by any one client
        subject to the investment advice of Price Investment Management.

(2)     With respect to securities owned by any one of the T. Rowe Price
        Funds, only the custodian for each of such Funds, has the right to
        receive dividends paid with respect to, and proceeds from the sale of,
        such securities. No other person is known to have such right, except
        that the shareholders of each such Fund participate proportionately
        in any dividends and distributions so paid.

Item 7: Identification and Classification of the Subsidiary Which Acquired the
        Security Being Reported on By the Parent Holding Company.
        Not Applicable

Item 8: Identification and Classification of Members of the Group
        Not Applicable

Item 9: Notice of Dissolution of Group
        Not Applicable

Item 10: Certification
         By signing below I certify that, to the best of my knowledge and
         belief, the securities referred to above were acquired in the
         ordinary course of business and were not acquired and are not
         held for the purpose of or with the effect of changing or
         influencing the control of the issuer of the securities and were
         not acquired and are not held in connection with or as a participant
         in any transaction having that purpose or effect.
         T. Rowe Price Investment Management, Inc. hereby declares and affirms
         that the filing of Schedule 13G shall not be construed as an admission
         that Price Investment Management is the beneficial owner of the
         securities referred to, which beneficial ownership is expressly
         denied.

         Signature.

         After reasonable inquiry and to the best of my knowledge and belief,
         I certify that the information set forth in this statement is true,
         complete and correct.

T. Rowe Price Investment Management, Inc.
Date: August 10, 2022
Signature: /s/ Mary Ann Picciotto
Name & Title: Mary Ann Picciotto, Vice President


T. ROWE PRICE MID-CAP GROWTH FUND, INC.
Date: August 10, 2022
Signature: /s/ Mary Ann Picciotto
Name & Title: Mary Ann Picciotto, Vice President


07/31/2022

EXHIBIT A
AGREEMENT
JOINT FILING OF SCHEDULE 13G

Price Investment Management, Inc. (an investment adviser
registered under the Investment Advisers Act of 1940),  and
T. ROWE PRICE MID-CAP GROWTH FUND, INC.,
all of which are Maryland corporations, hereby agree to file jointly the
statement on Schedule 13G to which this Agreement is attached, and any
amendments thereto which may be deemed necessary, pursuant to Regulation 13D-G
under the Securities Exchange Act of 1934.

It is understood and agreed that each of the parties hereto is responsible for
the timely filing of such statement and any amendments thereto, and for the
completeness and accuracy of the information concerning such party contained
therein, but such party is not responsible for the completeness or accuracy of
information concerning the other party unless such party knows or has reason to
believe that such information is inaccurate.

It is understood and agreed that a copy of this Agreement shall be attached as
an exhibit to the statement on Schedule 13G, and any amendments hereto, filed
on behalf of each of the parties hereto.





T. Rowe Price Investment Management, Inc.
Date: August 10, 2022
Signature: /s/ Mary Ann Picciotto
Name & Title: Mary Ann Picciotto, Vice President


T. ROWE PRICE MID-CAP GROWTH FUND, INC.
Date: August 10, 2022
Signature: /s/ Mary Ann Picciotto
Name & Title: Mary Ann Picciotto, Vice President