FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * SULLIVAN SCOTT C   2. Issuer Name and Ticker or Trading Symbol UNIONBANCORP INC [UBCD] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 321 W. MAIN STREET 3. Date of Earliest Transaction (Month/Day/Year) 03/02/2005 (Street) OTTAWA, IL 61350 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price COMMON STOCK 03/02/2005   P   200 A $ 20.89 8,596 (1) D   COMMON STOCK 03/02/2005   P   800 A $ 20.9 9,396 (2) D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
SULLIVAN SCOTT C 321 W. MAIN STREET OTTAWA, IL 61350	X

Signatures

SUZANNE FECHTER POA FOR SCOTT C. SULLIVAN PURSUANT TO A POWER OF ATTORNEY OF CONTINUING DURATION		03/03/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	IN ADDITION TO THE 8,596 SHARES, REPORTING PERSON HOLDS 295 SHARES IN AN IRA, 1,660 SHARES ARE HELD BY THE SPOUSE OF THE REPORTING PERSON, 1,000 SHARES ARE HELD BY THE CHILDREN OF THE REPORTING PERSON, WITH THE REPORTING PERSON ACTING AS CUSTODIAN, AND 19,000 SHARES WERE GRANTED TO THE REPORTING PERSON UNDER THE ISSUER'S STOCK OPTION PLAN.
(2)	IN ADDITION TO THE 9,396 SHARES, REPORTING PERSON HOLDS 295 SHARES IN AN IRA, 1,660 SHARES ARE HELD BY THE SPOUSE OF THE REPORITNG PERSON, 1,000 SHARES ARE HELD BY THE CHILDREN OF THE REPORTING PERSON, WTIH THE REPORTING PERSON ACTING AS CUSTODIAN, AND 19,000 SHARES WERE GRANTED TO THE REPORTING PERSON UNDER THE ISSUER'S STOCK OPTION PLAN.

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